| Date | Value | 
|---|---|
| Mar 31, 2025 | 219.52 | 
| Feb 28, 2025 | 217.81 | 
| Jan 31, 2025 | 216.56 | 
| Dec 31, 2024 | 215.74 | 
| Nov 30, 2024 | 212.43 | 
| Oct 31, 2024 | 208.93 | 
| Sep 30, 2024 | 205.78 | 
| Aug 31, 2024 | 204.62 | 
| Jul 31, 2024 | 203.30 | 
| Jun 30, 2024 | 202.04 | 
| May 31, 2024 | 200.55 | 
| Apr 30, 2024 | 199.32 | 
| Mar 31, 2024 | 198.53 | 
| Feb 29, 2024 | 200.17 | 
| Jan 31, 2024 | 201.77 | 
| Dec 31, 2023 | 203.24 | 
| Nov 30, 2023 | 200.16 | 
| Oct 31, 2023 | 196.89 | 
| Sep 30, 2023 | 193.94 | 
| Aug 31, 2023 | 193.28 | 
| Jul 31, 2023 | 192.98 | 
| Jun 30, 2023 | 192.20 | 
| May 31, 2023 | 190.75 | 
| Apr 30, 2023 | 189.15 | 
| Mar 31, 2023 | 188.02 | 
| Feb 28, 2023 | 187.77 | 
| Jan 31, 2023 | 187.95 | 
| Dec 31, 2022 | 188.57 | 
| Nov 30, 2022 | 193.19 | 
| Oct 31, 2022 | 198.19 | 
| Sep 30, 2022 | 204.20 | 
| Aug 31, 2022 | 206.53 | 
| Jul 31, 2022 | 208.35 | 
| Jun 30, 2022 | 210.21 | 
| May 31, 2022 | 215.19 | 
| Apr 30, 2022 | 219.67 | 
| Mar 31, 2022 | 223.02 | 
| Feb 28, 2022 | 225.98 | 
| Jan 31, 2022 | 228.03 | 
| Dec 31, 2021 | 229.93 | 
| Nov 30, 2021 | 221.90 | 
| Oct 31, 2021 | 214.20 | 
| Sep 30, 2021 | 207.12 | 
| Aug 31, 2021 | 201.13 | 
| Jul 31, 2021 | 194.97 | 
| Jun 30, 2021 | 189.31 | 
| May 31, 2021 | 178.81 | 
| Apr 30, 2021 | 167.88 | 
| Mar 31, 2021 | 156.80 | 
| Feb 28, 2021 | 143.93 | 
| Jan 31, 2021 | 130.65 | 
| Dec 31, 2020 | 117.08 | 
| Nov 30, 2020 | 118.89 | 
| Oct 31, 2020 | 120.51 | 
| Sep 30, 2020 | 122.26 | 
| Aug 31, 2020 | 122.85 | 
| Jul 31, 2020 | 123.65 | 
| Jun 30, 2020 | 124.70 | 
| May 31, 2020 | 132.59 | 
| Apr 30, 2020 | 139.79 | 
| Mar 31, 2020 | 146.01 | 
| Feb 29, 2020 | 155.36 | 
| Jan 31, 2020 | 165.47 | 
| Dec 31, 2019 | 175.83 | 
| Nov 30, 2019 | 172.92 | 
| Oct 31, 2019 | 170.07 | 
| Sep 30, 2019 | 167.69 | 
| Aug 31, 2019 | 168.82 | 
| Jul 31, 2019 | 169.81 | 
| Jun 30, 2019 | 171.09 | 
| May 31, 2019 | 170.76 | 
| Apr 30, 2019 | 170.75 | 
| Mar 31, 2019 | 171.28 | 
| Feb 28, 2019 | 171.39 | 
| Jan 31, 2019 | 171.26 | 
| Dec 31, 2018 | 170.72 | 
| Nov 30, 2018 | 169.32 | 
| Oct 31, 2018 | 167.90 | 
| Sep 30, 2018 | 167.34 | 
| Aug 31, 2018 | 164.15 | 
| Jul 31, 2018 | 160.85 | 
| Jun 30, 2018 | 157.47 | 
| May 31, 2018 | 154.70 | 
| Apr 30, 2018 | 152.31 | 
| Mar 31, 2018 | 149.87 | 
| Feb 28, 2018 | 147.79 | 
| Jan 31, 2018 | 146.04 | 
| Dec 31, 2017 | 144.40 | 
| Nov 30, 2017 | 143.09 | 
| Oct 31, 2017 | 141.87 | 
| Sep 30, 2017 | 140.55 | 
| Aug 31, 2017 | 139.95 | 
| Jul 31, 2017 | 139.02 | 
| Jun 30, 2017 | 137.58 | 
| May 31, 2017 | 136.06 | 
| Apr 30, 2017 | 134.52 | 
| Mar 31, 2017 | 133.27 | 
| Feb 28, 2017 | 130.83 | 
| Jan 31, 2017 | 128.69 | 
| Dec 31, 2016 | 126.88 | 
| Nov 30, 2016 | 124.47 | 
| Oct 31, 2016 | 121.84 | 
| Sep 30, 2016 | 119.55 | 
| Aug 31, 2016 | 118.87 | 
| Jul 31, 2016 | 118.00 | 
| Jun 30, 2016 | 116.84 | 
| May 31, 2016 | 117.01 | 
| Apr 30, 2016 | 117.26 | 
| Mar 31, 2016 | 117.60 | 
| Feb 29, 2016 | 118.15 | 
| Jan 31, 2016 | 118.29 | 
| Dec 31, 2015 | 118.52 | 
| Nov 30, 2015 | 120.00 | 
| Oct 31, 2015 | 121.62 | 
| Sep 30, 2015 | 123.44 | 
| Aug 31, 2015 | 125.17 | 
| Jul 31, 2015 | 126.92 | 
| Jun 30, 2015 | 128.85 | 
| May 31, 2015 | 131.27 | 
| Apr 30, 2015 | 133.92 | 
| Mar 31, 2015 | 136.18 | 
| Feb 28, 2015 | 138.40 | 
| Jan 31, 2015 | 140.41 | 
| Dec 31, 2014 | 141.16 | 
| Nov 30, 2014 | 142.03 | 
| Oct 31, 2014 | 142.92 | 
| Sep 30, 2014 | 144.22 | 
| Aug 31, 2014 | 143.04 | 
| Jul 31, 2014 | 141.51 | 
| Jun 30, 2014 | 140.17 | 
| May 31, 2014 | 139.40 | 
| Apr 30, 2014 | 138.85 | 
| Mar 31, 2014 | 138.27 | 
| Feb 28, 2014 | 138.86 | 
| Jan 31, 2014 | 139.08 | 
| Dec 31, 2013 | 139.29 | 
| Nov 30, 2013 | 136.58 | 
| Oct 31, 2013 | 133.61 | 
| Sep 30, 2013 | 130.57 | 
| Aug 31, 2013 | 129.15 | 
| Jul 31, 2013 | 127.72 | 
| Jun 30, 2013 | 126.19 | 
| May 31, 2013 | 124.99 | 
| Apr 30, 2013 | 123.70 | 
| Mar 31, 2013 | 122.06 | 
| Feb 28, 2013 | 121.83 | 
| Jan 31, 2013 | 122.27 | 
| Dec 31, 2012 | 122.07 | 
| Nov 30, 2012 | 121.74 | 
| Oct 31, 2012 | 121.15 | 
| Sep 30, 2012 | 121.10 | 
| Aug 31, 2012 | 122.31 | 
| Jul 31, 2012 | 123.66 | 
| Jun 30, 2012 | 124.13 | 
| May 31, 2012 | 124.23 | 
| Apr 30, 2012 | 124.38 | 
| Mar 31, 2012 | 125.05 | 
| Feb 29, 2012 | 125.24 | 
| Jan 31, 2012 | 125.04 | 
| Dec 31, 2011 | 124.83 | 
| Nov 30, 2011 | 124.53 | 
| Oct 31, 2011 | 124.44 | 
| Sep 30, 2011 | 124.20 | 
| Aug 31, 2011 | 122.91 | 
| Jul 31, 2011 | 121.76 | 
| Jun 30, 2011 | 120.38 | 
| May 31, 2011 | 119.03 | 
| Apr 30, 2011 | 118.36 | 
| Mar 31, 2011 | 117.88 | 
| Feb 28, 2011 | 117.10 | 
| Jan 31, 2011 | 115.73 | 
| Dec 31, 2010 | 114.33 | 
| Nov 30, 2010 | 111.82 | 
| Oct 31, 2010 | 109.16 | 
| Sep 30, 2010 | 106.58 | 
| Aug 31, 2010 | 104.29 | 
| Jul 31, 2010 | 102.07 | 
| Jun 30, 2010 | 99.74 | 
| May 31, 2010 | 96.58 | 
| Apr 30, 2010 | 93.60 | 
| Mar 31, 2010 | 90.70 | 
| Feb 28, 2010 | 86.11 | 
| Jan 31, 2010 | 81.17 | 
| Dec 31, 2009 | 76.47 | 
| Nov 30, 2009 | 57.15 | 
| Oct 31, 2009 | 37.99 | 
| Sep 30, 2009 | 18.81 | 
| Aug 31, 2009 | 16.31 | 
| Jul 31, 2009 | 13.82 | 
| Jun 30, 2009 | 11.28 | 
| May 31, 2009 | 11.05 | 
| Apr 30, 2009 | 10.75 | 
| Mar 31, 2009 | 10.45 | 
| Feb 28, 2009 | 14.56 | 
| Jan 31, 2009 | 18.73 | 
| Dec 31, 2008 | 22.93 | 
| Nov 30, 2008 | 38.49 | 
| Oct 31, 2008 | 53.24 | 
| Sep 30, 2008 | 68.04 | 
| Aug 31, 2008 | 70.62 | 
| Jul 31, 2008 | 73.00 | 
| Jun 30, 2008 | 76.06 | 
| May 31, 2008 | 81.32 | 
| Apr 30, 2008 | 86.54 | 
| Mar 31, 2008 | 91.63 | 
| Feb 29, 2008 | 95.38 | 
| Jan 31, 2008 | 98.62 | 
| Dec 31, 2007 | 102.08 | 
| Nov 30, 2007 | 108.40 | 
| Oct 31, 2007 | 115.46 | 
| Sep 30, 2007 | 122.14 | 
| Aug 31, 2007 | 125.76 | 
| Jul 31, 2007 | 128.80 | 
| Jun 30, 2007 | 132.05 | 
| May 31, 2007 | 131.38 | 
| Apr 30, 2007 | 131.26 | 
| Mar 31, 2007 | 131.18 | 
| Feb 28, 2007 | 131.51 | 
| Jan 31, 2007 | 131.34 | 
| Dec 31, 2006 | 130.86 | 
| Nov 30, 2006 | 129.48 | 
| Oct 31, 2006 | 127.71 | 
| Sep 30, 2006 | 125.45 | 
| Aug 31, 2006 | 122.68 | 
| Jul 31, 2006 | 120.75 | 
| Jun 30, 2006 | 118.94 | 
| May 31, 2006 | 118.20 | 
| Apr 30, 2006 | 117.82 | 
| Mar 31, 2006 | 117.83 | 
| Feb 28, 2006 | 116.94 | 
| Jan 31, 2006 | 115.63 | 
| Dec 31, 2005 | 114.96 | 
| Nov 30, 2005 | 112.65 | 
| Oct 31, 2005 | 109.93 | 
| Sep 30, 2005 | 108.32 | 
| Aug 31, 2005 | 107.88 | 
| Jul 31, 2005 | 106.66 | 
| Jun 30, 2005 | 105.37 | 
| May 31, 2005 | 103.74 | 
| Apr 30, 2005 | 101.94 | 
| Mar 31, 2005 | 100.93 | 
| Feb 28, 2005 | 100.78 | 
| Jan 31, 2005 | 100.42 | 
| Dec 31, 2004 | 99.68 | 
| Nov 30, 2004 | 98.87 | 
| Oct 31, 2004 | 98.48 | 
| Sep 30, 2004 | 98.56 | 
| Aug 31, 2004 | 97.84 | 
| Jul 31, 2004 | 96.97 | 
| Jun 30, 2004 | 95.89 | 
| May 31, 2004 | 93.83 | 
| Apr 30, 2004 | 91.99 | 
| Mar 31, 2004 | 89.90 | 
| Feb 29, 2004 | 88.59 | 
| Jan 31, 2004 | 87.16 | 
| Dec 31, 2003 | 85.68 | 
| Nov 30, 2003 | 79.64 | 
| Oct 31, 2003 | 73.49 | 
| Sep 30, 2003 | 67.49 | 
| Aug 31, 2003 | 65.35 | 
| Jul 31, 2003 | 63.23 | 
| Jun 30, 2003 | 60.93 | 
| May 31, 2003 | 58.51 | 
| Apr 30, 2003 | 55.93 | 
| Mar 31, 2003 | 53.33 | 
| Feb 28, 2003 | 52.04 | 
| Jan 31, 2003 | 50.82 | 
| Dec 31, 2002 | 49.41 | 
| Nov 30, 2002 | 50.76 | 
| Oct 31, 2002 | 52.22 | 
| Sep 30, 2002 | 53.77 | 
| Aug 31, 2002 | 51.89 | 
| Jul 31, 2002 | 50.08 | 
| Jun 30, 2002 | 48.16 | 
| May 31, 2002 | 46.96 | 
| Apr 30, 2002 | 45.73 | 
| Mar 31, 2002 | 44.76 | 
| Feb 28, 2002 | 45.00 | 
| Jan 31, 2002 | 45.17 | 
| Dec 31, 2001 | 45.27 | 
| Nov 30, 2001 | 47.29 | 
| Oct 31, 2001 | 49.41 | 
| Sep 30, 2001 | 51.44 | 
| Aug 31, 2001 | 56.83 | 
| Jul 31, 2001 | 61.99 | 
| Jun 30, 2001 | 66.96 | 
| May 31, 2001 | 72.33 | 
| Apr 30, 2001 | 77.94 | 
| Mar 31, 2001 | 83.55 | 
| Feb 28, 2001 | 86.54 | 
| Jan 31, 2001 | 89.70 | 
| Dec 31, 2000 | 93.10 | 
| Nov 30, 2000 | 95.34 | 
| Oct 31, 2000 | 97.69 | 
| Sep 30, 2000 | 100.16 | 
| Aug 31, 2000 | 99.57 | 
| Jul 31, 2000 | 98.46 | 
| Jun 30, 2000 | 97.57 | 
| May 31, 2000 | 97.47 | 
| Apr 30, 2000 | 96.97 | 
| Mar 31, 2000 | 96.42 | 
| Feb 29, 2000 | 95.44 | 
| Jan 31, 2000 | 94.23 | 
| Dec 31, 1999 | 92.73 | 
| Nov 30, 1999 | 90.03 | 
| Oct 31, 1999 | 87.38 | 
| Sep 30, 1999 | 84.82 | 
| Aug 31, 1999 | 83.33 | 
| Jul 31, 1999 | 81.63 | 
| Jun 30, 1999 | 79.96 | 
| May 31, 1999 | 78.25 | 
| Apr 30, 1999 | 76.53 | 
| Mar 31, 1999 | 75.36 | 
| Feb 28, 1999 | 75.15 | 
| Jan 31, 1999 | 74.80 | 
| Dec 31, 1998 | 74.54 | 
| Nov 30, 1998 | 74.74 | 
| Oct 31, 1998 | 75.00 | 
| Sep 30, 1998 | 75.43 | 
| Aug 31, 1998 | 76.10 | 
| Jul 31, 1998 | 76.78 | 
| Jun 30, 1998 | 77.46 | 
| May 31, 1998 | 77.93 | 
| Apr 30, 1998 | 78.45 | 
| Mar 31, 1998 | 78.98 | 
| Feb 28, 1998 | 79.24 | 
| Jan 31, 1998 | 79.51 | 
| Dec 31, 1997 | 79.78 | 
| Nov 30, 1997 | 80.30 | 
| Oct 31, 1997 | 80.86 | 
| Sep 30, 1997 | 81.68 | 
| Aug 31, 1997 | 81.82 | 
| Jul 31, 1997 | 81.91 | 
| Jun 30, 1997 | 81.95 | 
| May 31, 1997 | 81.85 | 
| Apr 30, 1997 | 81.59 | 
| Mar 31, 1997 | 81.48 | 
| Feb 28, 1997 | 80.66 | 
| Jan 31, 1997 | 79.89 | 
| Dec 31, 1996 | 79.11 | 
| Nov 30, 1996 | 77.26 | 
| Oct 31, 1996 | 75.54 | 
| Sep 30, 1996 | 73.91 | 
| Aug 31, 1996 | 73.40 | 
| Jul 31, 1996 | 72.79 | 
| Jun 30, 1996 | 72.18 | 
| May 31, 1996 | 71.62 | 
| Apr 30, 1996 | 71.16 | 
| Mar 31, 1996 | 70.83 | 
| Feb 29, 1996 | 71.14 | 
| Jan 31, 1996 | 71.31 | 
| Dec 31, 1995 | 71.68 | 
| Nov 30, 1995 | 72.49 | 
| Oct 31, 1995 | 73.30 | 
| Sep 30, 1995 | 74.40 | 
| Aug 31, 1995 | 74.01 | 
| Jul 31, 1995 | 73.68 | 
| Jun 30, 1995 | 73.14 | 
| May 31, 1995 | 71.95 | 
| Apr 30, 1995 | 70.76 | 
| Mar 31, 1995 | 69.65 | 
| Feb 28, 1995 | 68.49 | 
| Jan 31, 1995 | 67.36 | 
| Dec 31, 1994 | 66.22 | 
| Nov 30, 1994 | 63.86 | 
| Oct 31, 1994 | 61.59 | 
| Sep 30, 1994 | 59.27 | 
| Aug 31, 1994 | 57.88 | 
| Jul 31, 1994 | 56.56 | 
| Jun 30, 1994 | 55.16 | 
| May 31, 1994 | 53.53 | 
| Apr 30, 1994 | 51.74 | 
| Mar 31, 1994 | 49.98 | 
| Feb 28, 1994 | 49.55 | 
| Jan 31, 1994 | 49.11 | 
| Dec 31, 1993 | 48.64 | 
| Nov 30, 1993 | 47.54 | 
| Oct 31, 1993 | 46.48 | 
| Sep 30, 1993 | 45.57 | 
| Aug 31, 1993 | 44.86 | 
| Jul 31, 1993 | 44.18 | 
| Jun 30, 1993 | 43.37 | 
| May 31, 1993 | 43.81 | 
| Apr 30, 1993 | 44.25 | 
| Mar 31, 1993 | 44.76 | 
| Feb 28, 1993 | 44.35 | 
| Jan 31, 1993 | 43.94 | 
| Dec 31, 1992 | 43.58 | 
| Nov 30, 1992 | 42.76 | 
| Oct 31, 1992 | 42.02 | 
| Sep 30, 1992 | 41.36 | 
| Aug 31, 1992 | 40.72 | 
| Jul 31, 1992 | 40.08 | 
| Jun 30, 1992 | 39.40 | 
| May 31, 1992 | 38.88 | 
| Apr 30, 1992 | 38.27 | 
| Mar 31, 1992 | 37.65 | 
| Feb 29, 1992 | 37.67 | 
| Jan 31, 1992 | 37.64 | 
| Dec 31, 1991 | 37.52 | 
| Nov 30, 1991 | 39.00 | 
| Oct 31, 1991 | 40.56 | 
| Sep 30, 1991 | 42.08 | 
| Aug 31, 1991 | 43.52 | 
| Jul 31, 1991 | 44.91 | 
| Jun 30, 1991 | 46.24 | 
| May 31, 1991 | 47.59 | 
| Apr 30, 1991 | 48.96 | 
| Mar 31, 1991 | 50.25 | 
| Feb 28, 1991 | 50.65 | 
| Jan 31, 1991 | 51.04 | 
| Dec 31, 1990 | 51.67 | 
| Nov 30, 1990 | 51.99 | 
| Oct 31, 1990 | 52.43 | 
| Sep 30, 1990 | 53.08 | 
| Aug 31, 1990 | 53.13 | 
| Jul 31, 1990 | 53.22 | 
| Jun 30, 1990 | 53.02 | 
| May 31, 1990 | 53.65 | 
| Apr 30, 1990 | 54.12 | 
| Mar 31, 1990 | 54.55 | 
| Feb 28, 1990 | 55.86 | 
| Jan 31, 1990 | 57.14 | 
| Dec 31, 1989 | 58.76 | 
| Nov 30, 1989 | 59.55 | 
| Oct 31, 1989 | 60.40 | 
| Sep 30, 1989 | 61.40 | 
| Aug 31, 1989 | 62.92 | 
| Jul 31, 1989 | 64.35 | 
| Jun 30, 1989 | 65.84 | 
| May 31, 1989 | 65.77 | 
| Apr 30, 1989 | 65.92 | 
| Mar 31, 1989 | 66.12 | 
| Feb 28, 1989 | 65.43 | 
| Jan 31, 1989 | 64.62 | 
| Dec 31, 1988 | 63.85 | 
| Nov 30, 1988 | 63.06 | 
| Oct 31, 1988 | 62.19 | 
| Sep 30, 1988 | 61.47 | 
| Aug 31, 1988 | 60.92 | 
| Jul 31, 1988 | 60.21 | 
| Jun 30, 1988 | 59.50 | 
| May 31, 1988 | 56.92 | 
| Apr 30, 1988 | 54.27 | 
| Mar 31, 1988 | 51.70 | 
| Feb 29, 1988 | 50.91 | 
| Jan 31, 1988 | 50.02 | 
| Dec 31, 1987 | 49.13 | 
| Nov 30, 1987 | 47.59 | 
| Oct 31, 1987 | 46.10 | 
| Sep 30, 1987 | 44.68 | 
| Aug 31, 1987 | 43.56 | 
| Jul 31, 1987 | 42.42 | 
| Jun 30, 1987 | 41.16 | 
| May 31, 1987 | 41.96 | 
| Apr 30, 1987 | 42.76 | 
| Mar 31, 1987 | 43.64 | 
| Feb 28, 1987 | 43.24 | 
| Jan 31, 1987 | 42.79 | 
| Dec 31, 1986 | 42.45 | 
| Nov 30, 1986 | 42.85 | 
| Oct 31, 1986 | 43.26 | 
| Sep 30, 1986 | 43.66 | 
| Aug 31, 1986 | 43.72 | 
| Jul 31, 1986 | 43.66 | 
| Jun 30, 1986 | 43.52 | 
| May 31, 1986 | 43.57 | 
| Apr 30, 1986 | 43.50 | 
| Mar 31, 1986 | 43.24 | 
| Feb 28, 1986 | 43.13 | 
| Jan 31, 1986 | 43.10 | 
| Dec 31, 1985 | 43.31 | 
| Nov 30, 1985 | 44.04 | 
| Oct 31, 1985 | 44.78 | 
| Sep 30, 1985 | 45.56 | 
| Aug 31, 1985 | 46.07 | 
| Jul 31, 1985 | 46.53 | 
| Jun 30, 1985 | 47.00 | 
| May 31, 1985 | 47.92 | 
| Apr 30, 1985 | 48.88 | 
| Mar 31, 1985 | 49.91 | 
| Feb 28, 1985 | 50.35 | 
| Jan 31, 1985 | 50.84 | 
| Dec 31, 1984 | 51.20 | 
| Nov 30, 1984 | 51.11 | 
| Oct 31, 1984 | 51.03 | 
| Sep 30, 1984 | 51.10 | 
| Aug 31, 1984 | 50.97 | 
| Jul 31, 1984 | 50.79 | 
| Jun 30, 1984 | 50.61 | 
| May 31, 1984 | 49.78 | 
| Apr 30, 1984 | 48.94 | 
| Mar 31, 1984 | 48.19 | 
| Feb 29, 1984 | 46.98 | 
| Jan 31, 1984 | 45.91 | 
| Dec 31, 1983 | 44.87 | 
| Nov 30, 1983 | 44.14 | 
| Oct 31, 1983 | 43.44 | 
| Sep 30, 1983 | 42.79 | 
| Aug 31, 1983 | 42.24 | 
| Jul 31, 1983 | 41.60 | 
| Jun 30, 1983 | 40.99 | 
| May 31, 1983 | 40.93 | 
| Apr 30, 1983 | 41.00 | 
| Mar 31, 1983 | 41.10 | 
| Feb 28, 1983 | 41.34 | 
| Jan 31, 1983 | 41.63 | 
| Dec 31, 1982 | 41.96 | 
| Nov 30, 1982 | 42.80 | 
| Oct 31, 1982 | 43.72 | 
| Sep 30, 1982 | 44.87 | 
| Aug 31, 1982 | 45.64 | 
| Jul 31, 1982 | 46.41 | 
| Jun 30, 1982 | 47.33 | 
| May 31, 1982 | 48.64 | 
| Apr 30, 1982 | 49.83 | 
| Mar 31, 1982 | 50.77 | 
| Feb 28, 1982 | 51.35 | 
| Jan 31, 1982 | 52.14 | 
| Dec 31, 1981 | 52.94 | 
| Nov 30, 1981 | 53.00 | 
| Oct 31, 1981 | 53.07 | 
| Sep 30, 1981 | 53.08 | 
| Aug 31, 1981 | 53.29 | 
| Jul 31, 1981 | 53.39 | 
| Jun 30, 1981 | 53.67 | 
| May 31, 1981 | 53.64 | 
| Apr 30, 1981 | 53.54 | 
| Mar 31, 1981 | 53.37 | 
| Feb 28, 1981 | 54.03 | 
| Jan 31, 1981 | 54.89 | 
| Dec 31, 1980 | 55.64 | 
| Nov 30, 1980 | 55.93 | 
| Oct 31, 1980 | 56.16 | 
| Sep 30, 1980 | 56.46 | 
| Aug 31, 1980 | 57.33 | 
| Jul 31, 1980 | 58.14 | 
| Jun 30, 1980 | 58.53 | 
| May 31, 1980 | 59.63 | 
| Apr 30, 1980 | 60.69 | 
| Mar 31, 1980 | 61.84 | 
| Feb 29, 1980 | 62.19 | 
| Jan 31, 1980 | 62.48 | 
| Dec 31, 1979 | 62.77 | 
| Nov 30, 1979 | 63.10 | 
| Oct 31, 1979 | 63.36 | 
| Sep 30, 1979 | 63.54 | 
| Aug 31, 1979 | 63.27 | 
| Jul 31, 1979 | 62.92 | 
| Jun 30, 1979 | 62.64 | 
| May 31, 1979 | 62.32 | 
| Apr 30, 1979 | 62.07 | 
| Mar 31, 1979 | 61.73 | 
| Feb 28, 1979 | 60.84 | 
| Jan 31, 1979 | 60.02 | 
| Dec 31, 1978 | 59.00 | 
| Nov 30, 1978 | 58.05 | 
| Oct 31, 1978 | 57.09 | 
| Sep 30, 1978 | 56.37 | 
| Aug 31, 1978 | 56.24 | 
| Jul 31, 1978 | 55.94 | 
| Jun 30, 1978 | 55.80 | 
| May 31, 1978 | 55.89 | 
| Apr 30, 1978 | 55.89 | 
| Mar 31, 1978 | 55.80 | 
| Feb 28, 1978 | 56.19 | 
| Jan 31, 1978 | 56.50 | 
| Dec 31, 1977 | 56.81 | 
| Nov 30, 1977 | 56.68 | 
| Oct 31, 1977 | 56.64 | 
| Sep 30, 1977 | 56.51 | 
| Aug 31, 1977 | 56.18 | 
| Jul 31, 1977 | 55.86 | 
| Jun 30, 1977 | 55.61 | 
| May 31, 1977 | 55.38 | 
| Apr 30, 1977 | 55.04 | 
| Mar 31, 1977 | 54.89 | 
| Feb 28, 1977 | 54.95 | 
| Jan 31, 1977 | 55.20 | 
| Dec 31, 1976 | 55.16 | 
| Nov 30, 1976 | 54.68 | 
| Oct 31, 1976 | 54.11 | 
| Sep 30, 1976 | 53.71 | 
| Aug 31, 1976 | 53.34 | 
| Jul 31, 1976 | 53.05 | 
| Jun 30, 1976 | 52.76 | 
| May 31, 1976 | 51.91 | 
| Apr 30, 1976 | 51.15 | 
| Mar 31, 1976 | 50.19 | 
| Feb 29, 1976 | 48.93 | 
| Jan 31, 1976 | 47.74 | 
| Dec 31, 1975 | 46.47 | 
| Nov 30, 1975 | 46.24 | 
| Oct 31, 1975 | 46.19 | 
| Sep 30, 1975 | 46.04 | 
| Aug 31, 1975 | 46.70 | 
| Jul 31, 1975 | 47.18 | 
| Jun 30, 1975 | 48.11 | 
| May 31, 1975 | 49.47 | 
| Apr 30, 1975 | 50.75 | 
| Mar 31, 1975 | 51.95 | 
| Feb 28, 1975 | 53.05 | 
| Jan 31, 1975 | 54.37 | 
| Dec 31, 1974 | 55.49 | 
| Nov 30, 1974 | 56.39 | 
| Oct 31, 1974 | 57.29 | 
| Sep 30, 1974 | 58.33 | 
| Aug 31, 1974 | 58.23 | 
| Jul 31, 1974 | 58.13 | 
| Jun 30, 1974 | 57.79 | 
| May 31, 1974 | 57.42 | 
| Apr 30, 1974 | 57.28 | 
| Mar 31, 1974 | 56.66 | 
| Feb 28, 1974 | 56.92 | 
| Jan 31, 1974 | 57.19 | 
| Dec 31, 1973 | 57.22 | 
| Nov 30, 1973 | 56.49 | 
| Oct 31, 1973 | 55.75 | 
| Sep 30, 1973 | 55.12 | 
| Aug 31, 1973 | 54.14 | 
| Jul 31, 1973 | 54.00 | 
| Jun 30, 1973 | 52.99 | 
| May 31, 1973 | 52.30 | 
| Apr 30, 1973 | 51.59 | 
| Mar 31, 1973 | 50.88 | 
| Feb 28, 1973 | 50.40 | 
| Jan 31, 1973 | 49.79 | 
| Dec 31, 1972 | 48.94 | 
| Nov 30, 1972 | 48.34 | 
| Oct 31, 1972 | 47.74 | 
| Sep 30, 1972 | 47.25 | 
| Aug 31, 1972 | 46.93 | 
| Jul 31, 1972 | 46.60 | 
| Jun 30, 1972 | 46.38 | 
| May 31, 1972 | 46.08 | 
| Apr 30, 1972 | 45.77 | 
| Mar 31, 1972 | 45.47 | 
| Feb 29, 1972 | 45.29 | 
| Jan 31, 1972 | 45.22 | 
| Dec 31, 1971 | 44.93 | 
| Nov 30, 1971 | 44.44 | 
| Oct 31, 1971 | 43.72 | 
| Sep 30, 1971 | 43.12 | 
| Aug 31, 1971 | 42.83 | 
| Jul 31, 1971 | 42.64 | 
| Jun 30, 1971 | 42.45 | 
| May 31, 1971 | 42.50 | 
| Apr 30, 1971 | 42.44 | 
| Mar 31, 1971 | 42.28 | 
| Feb 28, 1971 | 42.14 | 
| Jan 31, 1971 | 42.00 | 
| Dec 31, 1970 | 41.76 | 
| Nov 30, 1970 | 42.60 | 
| Oct 31, 1970 | 43.44 | 
| Sep 30, 1970 | 44.30 | 
| Aug 31, 1970 | 44.97 | 
| Jul 31, 1970 | 45.41 | 
| Jun 30, 1970 | 46.09 | 
| May 31, 1970 | 46.64 | 
| Apr 30, 1970 | 47.07 | 
| Mar 31, 1970 | 47.75 | 
| Feb 28, 1970 | 48.43 | 
| Jan 31, 1970 | 49.11 | 
| Dec 31, 1969 | 49.67 | 
| Nov 30, 1969 | 50.25 | 
| Oct 31, 1969 | 50.84 | 
| Sep 30, 1969 | 51.43 | 
| Aug 31, 1969 | 51.43 | 
| Jul 31, 1969 | 51.56 | 
| Jun 30, 1969 | 51.69 | 
| May 31, 1969 | 51.92 | 
| Apr 30, 1969 | 52.00 | 
| Mar 31, 1969 | 52.23 | 
| Feb 28, 1969 | 52.49 | 
| Jan 31, 1969 | 52.60 | 
| Dec 31, 1968 | 52.57 | 
| Nov 30, 1968 | 52.41 | 
| Oct 31, 1968 | 52.25 | 
| Sep 30, 1968 | 52.24 | 
| Aug 31, 1968 | 52.11 | 
| Jul 31, 1968 | 51.98 | 
| Jun 30, 1968 | 52.00 | 
| May 31, 1968 | 51.90 | 
| Apr 30, 1968 | 51.64 | 
| Mar 31, 1968 | 51.38 | 
| Feb 29, 1968 | 51.19 | 
| Jan 31, 1968 | 50.99 | 
| Dec 31, 1967 | 50.94 | 
| Nov 30, 1967 | 50.99 | 
| Oct 31, 1967 | 51.05 | 
| Sep 30, 1967 | 51.10 | 
| Aug 31, 1967 | 51.35 | 
| Jul 31, 1967 | 51.60 | 
| Jun 30, 1967 | 51.86 | 
| May 31, 1967 | 52.40 | 
| Apr 30, 1967 | 52.95 | 
| Mar 31, 1967 | 53.51 | 
| Feb 28, 1967 | 54.00 | 
| Jan 31, 1967 | 54.32 | 
| Dec 31, 1966 | 54.65 | 
| Nov 30, 1966 | 54.52 | 
| Oct 31, 1966 | 54.39 | 
| Sep 30, 1966 | 54.59 | 
| Aug 31, 1966 | 54.43 | 
| Jul 31, 1966 | 54.59 | 
| Jun 30, 1966 | 54.60 | 
| May 31, 1966 | 54.36 | 
| Apr 30, 1966 | 53.96 | 
| Mar 31, 1966 | 53.90 | 
| Feb 28, 1966 | 53.56 | 
| Jan 31, 1966 | 53.38 | 
| Dec 31, 1965 | 52.88 | 
| Nov 30, 1965 | 52.33 | 
| Oct 31, 1965 | 51.61 | 
| Sep 30, 1965 | 51.06 | 
| Aug 31, 1965 | 50.58 | 
| Jul 31, 1965 | 50.10 | 
| Jun 30, 1965 | 49.62 | 
| May 31, 1965 | 49.39 | 
| Apr 30, 1965 | 48.84 | 
| Mar 31, 1965 | 48.44 | 
| Feb 28, 1965 | 48.15 | 
| Jan 31, 1965 | 47.70 | 
| Dec 31, 1964 | 47.25 | 
| Nov 30, 1964 | 46.97 | 
| Oct 31, 1964 | 46.84 | 
| Sep 30, 1964 | 46.57 | 
| Aug 31, 1964 | 46.23 | 
| Jul 31, 1964 | 45.59 | 
| Jun 30, 1964 | 45.25 | 
| May 31, 1964 | 44.87 | 
| Apr 30, 1964 | 44.35 | 
| Mar 31, 1964 | 43.83 | 
| Feb 29, 1964 | 43.27 | 
| Jan 31, 1964 | 42.71 | 
| Dec 31, 1963 | 42.15 | 
| Nov 30, 1963 | 42.07 | 
| Oct 31, 1963 | 41.86 | 
| Sep 30, 1963 | 41.79 | 
| Aug 31, 1963 | 41.37 | 
| Jul 31, 1963 | 40.95 | 
| Jun 30, 1963 | 40.66 | 
| May 31, 1963 | 40.33 | 
| Apr 30, 1963 | 39.87 | 
| Mar 31, 1963 | 39.41 | 
| Feb 28, 1963 | 39.40 | 
| Jan 31, 1963 | 39.25 | 
| Dec 31, 1962 | 39.11 | 
| Nov 30, 1962 | 38.61 | 
| Oct 31, 1962 | 38.12 | 
| Sep 30, 1962 | 37.62 | 
| Aug 31, 1962 | 37.53 | 
| Jul 31, 1962 | 37.32 | 
| Jun 30, 1962 | 37.23 | 
| May 31, 1962 | 36.87 | 
| Apr 30, 1962 | 36.51 | 
| Mar 31, 1962 | 36.27 | 
| Feb 28, 1962 | 35.63 | 
| Jan 31, 1962 | 35.10 | 
| Dec 31, 1961 | 34.45 | 
| Nov 30, 1961 | 33.95 | 
| Oct 31, 1961 | 33.44 | 
| Sep 30, 1961 | 32.94 | 
| Aug 31, 1961 | 32.98 | 
| Jul 31, 1961 | 32.79 | 
| Jun 30, 1961 | 32.94 | 
| May 31, 1961 | 33.16 | 
| Apr 30, 1961 | 33.38 | 
| Mar 31, 1961 | 33.59 | 
| Feb 28, 1961 | 34.25 | 
| Jan 31, 1961 | 34.90 | 
| Dec 31, 1960 | 35.55 | 
| Nov 30, 1960 | 35.55 | 
| Oct 31, 1960 | 35.55 | 
| Sep 30, 1960 | 35.79 | 
| Aug 31, 1960 | 35.75 | 
| Jul 31, 1960 | 35.72 | 
| Jun 30, 1960 | 35.68 | 
| May 31, 1960 | 36.28 | 
| Apr 30, 1960 | 36.75 | 
| Mar 31, 1960 | 37.36 | 
| Feb 29, 1960 | 37.36 | 
| Jan 31, 1960 | 37.48 | 
| Dec 31, 1959 | 37.36 | 
| Nov 30, 1959 | 37.50 | 
| Oct 31, 1959 | 37.65 | 
| Sep 30, 1959 | 37.93 | 
| Aug 31, 1959 | 37.95 | 
| Jul 31, 1959 | 37.83 | 
| Jun 30, 1959 | 37.85 | 
| May 31, 1959 | 36.90 | 
| Apr 30, 1959 | 35.82 | 
| Mar 31, 1959 | 34.86 | 
| Feb 28, 1959 | 34.04 | 
| Jan 31, 1959 | 33.11 | 
| Dec 31, 1958 | 32.40 | 
| Nov 30, 1958 | 32.25 | 
| Oct 31, 1958 | 32.32 | 
| Sep 30, 1958 | 32.29 | 
| Aug 31, 1958 | 32.47 | 
| Jul 31, 1958 | 32.55 | 
| Jun 30, 1958 | 32.85 | 
| May 31, 1958 | 33.63 | 
| Apr 30, 1958 | 34.42 | 
| Mar 31, 1958 | 35.32 | 
| Feb 28, 1958 | 36.44 | 
| Jan 31, 1958 | 37.31 | 
| Dec 31, 1957 | 38.44 | 
| Nov 30, 1957 | 38.82 | 
| Oct 31, 1957 | 39.34 | 
| Sep 30, 1957 | 39.72 | 
| Aug 31, 1957 | 39.53 | 
| Jul 31, 1957 | 39.34 | 
| Jun 30, 1957 | 39.43 | 
| May 31, 1957 | 39.49 | 
| Apr 30, 1957 | 39.56 | 
| Mar 31, 1957 | 39.62 | 
| Feb 28, 1957 | 39.80 | 
| Jan 31, 1957 | 39.99 | 
| Dec 31, 1956 | 40.03 | 
| Nov 30, 1956 | 40.37 | 
| Oct 31, 1956 | 40.57 | 
| Sep 30, 1956 | 40.91 | 
| Aug 31, 1956 | 41.61 | 
| Jul 31, 1956 | 42.01 | 
| Jun 30, 1956 | 42.88 | 
| May 31, 1956 | 43.56 | 
| Apr 30, 1956 | 44.08 | 
| Mar 31, 1956 | 44.61 | 
| Feb 29, 1956 | 44.33 | 
| Jan 31, 1956 | 44.04 | 
| Dec 31, 1955 | 43.76 | 
| Nov 30, 1955 | 42.88 | 
| Oct 31, 1955 | 42.15 | 
| Sep 30, 1955 | 41.43 | 
| Aug 31, 1955 | 40.70 | 
| Jul 31, 1955 | 39.81 | 
| Jun 30, 1955 | 39.07 | 
| May 31, 1955 | 38.02 | 
| Apr 30, 1955 | 36.97 | 
| Mar 31, 1955 | 35.92 | 
| Feb 28, 1955 | 35.15 | 
| Jan 31, 1955 | 34.38 | 
| Dec 31, 1954 | 33.61 | 
| Nov 30, 1954 | 32.92 | 
| Oct 31, 1954 | 32.36 | 
| Sep 30, 1954 | 31.79 | 
| Aug 31, 1954 | 31.63 | 
| Jul 31, 1954 | 31.59 | 
| Jun 30, 1954 | 31.55 | 
| May 31, 1954 | 31.27 | 
| Apr 30, 1954 | 31.11 | 
| Mar 31, 1954 | 30.71 | 
| Feb 28, 1954 | 30.55 | 
| Jan 31, 1954 | 30.39 | 
| Dec 31, 1953 | 30.23 | 
| Nov 30, 1953 | 30.39 | 
| Oct 31, 1953 | 30.44 | 
| Sep 30, 1953 | 30.71 | 
| Aug 31, 1953 | 30.55 | 
| Jul 31, 1953 | 30.50 | 
| Jun 30, 1953 | 30.34 | 
| May 31, 1953 | 30.13 | 
| Apr 30, 1953 | 29.92 | 
| Mar 31, 1953 | 29.60 | 
| Feb 28, 1953 | 29.59 | 
| Jan 31, 1953 | 29.35 | 
| Dec 31, 1952 | 29.12 | 
| Nov 30, 1952 | 28.96 | 
| Oct 31, 1952 | 28.80 | 
| Sep 30, 1952 | 28.64 | 
| Aug 31, 1952 | 28.56 | 
| Jul 31, 1952 | 28.47 | 
| Jun 30, 1952 | 28.61 | 
| May 31, 1952 | 28.96 | 
| Apr 30, 1952 | 29.21 | 
| Mar 31, 1952 | 29.56 | 
| Feb 29, 1952 | 29.73 | 
| Jan 31, 1952 | 29.67 | 
| Dec 31, 1951 | 29.83 | 
| Nov 30, 1951 | 30.23 | 
| Oct 31, 1951 | 30.75 | 
| Sep 30, 1951 | 31.16 | 
| Aug 31, 1951 | 32.27 | 
| Jul 31, 1951 | 33.15 | 
| Jun 30, 1951 | 34.02 | 
| May 31, 1951 | 34.48 | 
| Apr 30, 1951 | 35.08 | 
| Mar 31, 1951 | 35.54 | 
| Feb 28, 1951 | 35.72 | 
| Jan 31, 1951 | 36.18 | 
| Dec 31, 1950 | 36.80 | 
| Nov 30, 1950 | 36.73 | 
| Oct 31, 1950 | 36.35 | 
| Sep 30, 1950 | 36.12 | 
| Aug 31, 1950 | 35.46 | 
| Jul 31, 1950 | 34.95 | 
| Jun 30, 1950 | 34.58 | 
| May 31, 1950 | 33.95 | 
| Apr 30, 1950 | 33.31 | 
| Mar 31, 1950 | 32.53 | 
| Feb 28, 1950 | 32.44 | 
| Jan 31, 1950 | 32.21 | 
| Dec 31, 1949 | 31.85 | 
| Nov 30, 1949 | 31.90 | 
| Oct 31, 1949 | 32.35 | 
| Sep 30, 1949 | 32.40 | 
| Aug 31, 1949 | 32.58 | 
| Jul 31, 1949 | 32.76 | 
| Jun 30, 1949 | 32.53 | 
| May 31, 1949 | 32.58 | 
| Apr 30, 1949 | 32.35 | 
| Mar 31, 1949 | 32.40 | 
| Feb 28, 1949 | 31.99 | 
| Jan 31, 1949 | 31.32 | 
| Dec 31, 1948 | 30.78 | 
| Nov 30, 1948 | 29.68 | 
| Oct 31, 1948 | 28.46 | 
| Sep 30, 1948 | 27.37 | 
| Aug 31, 1948 | 26.45 | 
| Jul 31, 1948 | 25.63 | 
| Jun 30, 1948 | 25.00 | 
| May 31, 1948 | 24.54 | 
| Apr 30, 1948 | 23.96 | 
| Mar 31, 1948 | 23.68 | 
| Feb 29, 1948 | 23.11 | 
| Jan 31, 1948 | 22.46 | 
| Dec 31, 1947 | 22.29 | 
| Nov 30, 1947 | 22.30 | 
| Oct 31, 1947 | 22.11 | 
| Sep 30, 1947 | 21.83 | 
| Aug 31, 1947 | 21.79 | 
| Jul 31, 1947 | 21.55 | 
| Jun 30, 1947 | 21.21 | 
| May 31, 1947 | 20.46 | 
| Apr 30, 1947 | 19.63 | 
| Mar 31, 1947 | 18.79 | 
| Feb 28, 1947 | 18.08 | 
| Jan 31, 1947 | 17.03 | 
| Dec 31, 1946 | 15.97 | 
| Nov 30, 1946 | 15.26 | 
| Oct 31, 1946 | 14.75 | 
| Sep 30, 1946 | 14.13 | 
| Aug 31, 1946 | 14.01 | 
| Jul 31, 1946 | 14.02 | 
| Jun 30, 1946 | 14.55 | 
| May 31, 1946 | 15.06 | 
| Apr 30, 1946 | 15.49 | 
| Mar 31, 1946 | 15.93 | 
| Feb 28, 1946 | 16.47 | 
| Jan 31, 1946 | 16.73 | 
| Dec 31, 1945 | 17.09 | 
| Nov 30, 1945 | 17.36 | 
| Oct 31, 1945 | 17.54 | 
| Sep 30, 1945 | 17.72 | 
| Aug 31, 1945 | 17.78 | 
| Jul 31, 1945 | 17.84 | 
| Jun 30, 1945 | 17.90 | 
| May 31, 1945 | 17.86 | 
| Apr 30, 1945 | 17.72 | 
| Mar 31, 1945 | 17.47 | 
| Feb 28, 1945 | 17.29 | 
| Jan 31, 1945 | 17.11 | 
| Dec 31, 1944 | 16.93 | 
| Nov 30, 1944 | 16.84 | 
| Oct 31, 1944 | 16.66 | 
| Sep 30, 1944 | 16.47 | 
| Aug 31, 1944 | 16.60 | 
| Jul 31, 1944 | 16.72 | 
| Jun 30, 1944 | 16.94 | 
| May 31, 1944 | 17.09 | 
| Apr 30, 1944 | 17.16 | 
| Mar 31, 1944 | 17.32 | 
| Feb 29, 1944 | 17.38 | 
| Jan 31, 1944 | 17.44 | 
| Dec 31, 1943 | 17.50 | 
| Nov 30, 1943 | 18.37 | 
| Oct 31, 1943 | 19.24 | 
| Sep 30, 1943 | 20.11 | 
| Aug 31, 1943 | 20.35 | 
| Jul 31, 1943 | 20.36 | 
| Jun 30, 1943 | 20.36 | 
| May 31, 1943 | 20.18 | 
| Apr 30, 1943 | 20.11 | 
| Mar 31, 1943 | 20.15 | 
| Feb 28, 1943 | 20.26 | 
| Jan 31, 1943 | 20.00 | 
| Dec 31, 1942 | 19.75 | 
| Nov 30, 1942 | 19.28 | 
| Oct 31, 1942 | 18.82 | 
| Sep 30, 1942 | 18.46 | 
| Aug 31, 1942 | 18.72 | 
| Jul 31, 1942 | 19.10 | 
| Jun 30, 1942 | 19.48 | 
| May 31, 1942 | 19.88 | 
| Apr 30, 1942 | 20.53 | 
| Mar 31, 1942 | 21.06 | 
| Feb 28, 1942 | 22.15 | 
| Jan 31, 1942 | 23.11 | 
| Dec 31, 1941 | 24.25 | 
| Nov 30, 1941 | 24.61 | 
| Oct 31, 1941 | 24.99 | 
| Sep 30, 1941 | 25.53 | 
| Aug 31, 1941 | 25.15 | 
| Jul 31, 1941 | 24.76 | 
| Jun 30, 1941 | 24.02 | 
| May 31, 1941 | 24.30 | 
| Apr 30, 1941 | 24.24 | 
| Mar 31, 1941 | 24.18 | 
| Feb 28, 1941 | 24.28 | 
| Jan 31, 1941 | 24.20 | 
| Dec 31, 1940 | 24.13 | 
| Nov 30, 1940 | 24.53 | 
| Oct 31, 1940 | 24.76 | 
| Sep 30, 1940 | 24.99 | 
| Aug 31, 1940 | 24.68 | 
| Jul 31, 1940 | 24.38 | 
| Jun 30, 1940 | 23.90 | 
| May 31, 1940 | 23.68 | 
| Apr 30, 1940 | 23.30 | 
| Mar 31, 1940 | 22.91 | 
| Feb 29, 1940 | 22.22 | 
| Jan 31, 1940 | 21.68 | 
| Dec 31, 1939 | 20.83 | 
| Nov 30, 1939 | 20.13 | 
| Oct 31, 1939 | 19.44 | 
| Sep 30, 1939 | 18.61 | 
| Aug 31, 1939 | 18.62 | 
| Jul 31, 1939 | 18.23 | 
| Jun 30, 1939 | 17.84 | 
| May 31, 1939 | 17.45 | 
| Apr 30, 1939 | 17.06 | 
| Mar 31, 1939 | 16.55 | 
| Feb 28, 1939 | 16.00 | 
| Jan 31, 1939 | 15.35 | 
| Dec 31, 1938 | 14.81 | 
| Nov 30, 1938 | 14.66 | 
| Oct 31, 1938 | 14.50 | 
| Sep 30, 1938 | 14.25 | 
| Aug 31, 1938 | 15.39 | 
| Jul 31, 1938 | 16.54 | 
| Jun 30, 1938 | 17.69 | 
| May 31, 1938 | 19.22 | 
| Apr 30, 1938 | 20.61 | 
| Mar 31, 1938 | 22.29 | 
| Feb 28, 1938 | 23.51 | 
| Jan 31, 1938 | 24.56 | 
| Dec 31, 1937 | 25.42 | 
| Nov 30, 1937 | 25.92 | 
| Oct 31, 1937 | 26.41 | 
| Sep 30, 1937 | 27.07 | 
| Aug 31, 1937 | 26.89 | 
| Jul 31, 1937 | 26.51 | 
| Jun 30, 1937 | 26.32 | 
| May 31, 1937 | 25.87 | 
| Apr 30, 1937 | 25.60 | 
| Mar 31, 1937 | 25.32 | 
| Feb 28, 1937 | 24.82 | 
| Jan 31, 1937 | 24.13 | 
| Dec 31, 1936 | 23.60 | 
| Nov 30, 1936 | 22.99 | 
| Oct 31, 1936 | 22.37 | 
| Sep 30, 1936 | 21.75 | 
| Aug 31, 1936 | 21.29 | 
| Jul 31, 1936 | 20.98 | 
| Jun 30, 1936 | 20.66 | 
| May 31, 1936 | 20.10 | 
| Apr 30, 1936 | 19.39 | 
| Mar 31, 1936 | 18.68 | 
| Feb 29, 1936 | 18.31 | 
| Jan 31, 1936 | 18.08 | 
| Dec 31, 1935 | 17.84 | 
| Nov 30, 1935 | 17.84 | 
| Oct 31, 1935 | 17.97 | 
| Sep 30, 1935 | 17.97 | 
| Aug 31, 1935 | 18.37 | 
| Jul 31, 1935 | 18.76 | 
| Jun 30, 1935 | 19.15 | 
| May 31, 1935 | 18.39 | 
| Apr 30, 1935 | 17.76 | 
| Mar 31, 1935 | 17.26 | 
| Feb 28, 1935 | 15.37 | 
| Jan 31, 1935 | 13.58 | 
| Dec 31, 1934 | 11.85 | 
| Nov 30, 1934 | 11.66 | 
| Oct 31, 1934 | 11.56 | 
| Sep 30, 1934 | 11.37 | 
| Aug 31, 1934 | 11.44 | 
| Jul 31, 1934 | 11.34 | 
| Jun 30, 1934 | 11.24 | 
| May 31, 1934 | 11.22 | 
| Apr 30, 1934 | 11.12 | 
| Mar 31, 1934 | 11.02 | 
| Feb 28, 1934 | 10.92 | 
| Jan 31, 1934 | 10.90 | 
| Dec 31, 1933 | 10.80 | 
| Nov 30, 1933 | 10.74 | 
| Oct 31, 1933 | 10.68 | 
| Sep 30, 1933 | 10.62 | 
| Aug 31, 1933 | 10.55 | 
| Jul 31, 1933 | 10.57 | 
| Jun 30, 1933 | 10.84 | 
| May 31, 1933 | 10.86 | 
| Apr 30, 1933 | 10.80 | 
| Mar 31, 1933 | 10.73 | 
| Feb 28, 1933 | 10.59 | 
| Jan 31, 1933 | 10.36 | 
| Dec 31, 1932 | 10.14 | 
| Nov 30, 1932 | 10.47 | 
| Oct 31, 1932 | 10.80 | 
| Sep 30, 1932 | 11.12 | 
| Aug 31, 1932 | 11.44 | 
| Jul 31, 1932 | 11.75 | 
| Jun 30, 1932 | 12.15 | 
| May 31, 1932 | 12.46 | 
| Apr 30, 1932 | 12.66 | 
| Mar 31, 1932 | 12.96 | 
| Feb 29, 1932 | 13.25 | 
| Jan 31, 1932 | 13.44 | 
| Dec 31, 1931 | 13.54 | 
| Nov 30, 1931 | 14.11 | 
| Oct 31, 1931 | 14.57 | 
| Sep 30, 1931 | 15.12 | 
| Aug 31, 1931 | 15.66 | 
| Jul 31, 1931 | 16.31 | 
| Jun 30, 1931 | 16.95 | 
| May 31, 1931 | 17.36 | 
| Apr 30, 1931 | 17.77 | 
| Mar 31, 1931 | 18.28 | 
| Feb 28, 1931 | 18.78 | 
| Jan 31, 1931 | 19.15 | 
| Dec 31, 1930 | 19.52 | 
| Nov 30, 1930 | 20.21 | 
| Oct 31, 1930 | 21.15 | 
| Sep 30, 1930 | 22.05 | 
| Aug 31, 1930 | 23.23 | 
| Jul 31, 1930 | 24.14 | 
| Jun 30, 1930 | 24.88 | 
| May 31, 1930 | 25.75 | 
| Apr 30, 1930 | 26.62 | 
| Mar 31, 1930 | 27.80 | 
| Feb 28, 1930 | 28.64 | 
| Jan 31, 1930 | 29.50 | 
| Dec 31, 1929 | 30.33 | 
| Nov 30, 1929 | 29.79 | 
| Oct 31, 1929 | 29.44 | 
| Sep 30, 1929 | 29.06 | 
| Aug 31, 1929 | 28.71 | 
| Jul 31, 1929 | 28.35 | 
| Jun 30, 1929 | 28.32 | 
| May 31, 1929 | 28.13 | 
| Apr 30, 1929 | 27.93 | 
| Mar 31, 1929 | 27.40 | 
| Feb 28, 1929 | 26.87 | 
| Jan 31, 1929 | 26.51 | 
| Dec 31, 1928 | 26.15 | 
| Nov 30, 1928 | 25.56 | 
| Oct 31, 1928 | 25.15 | 
| Sep 30, 1928 | 24.57 | 
| Aug 31, 1928 | 24.44 | 
| Jul 31, 1928 | 24.02 | 
| Jun 30, 1928 | 23.59 | 
| May 31, 1928 | 23.02 | 
| Apr 30, 1928 | 22.74 | 
| Mar 31, 1928 | 22.30 | 
| Feb 29, 1928 | 21.88 | 
| Jan 31, 1928 | 21.22 | 
| Dec 31, 1927 | 20.79 | 
| Nov 30, 1927 | 20.99 | 
| Oct 31, 1927 | 21.08 | 
| Sep 30, 1927 | 21.40 | 
| Aug 31, 1927 | 21.72 | 
| Jul 31, 1927 | 21.80 | 
| Jun 30, 1927 | 21.63 | 
| May 31, 1927 | 22.08 | 
| Apr 30, 1927 | 22.42 | 
| Mar 31, 1927 | 22.62 | 
| Feb 28, 1927 | 22.68 | 
| Jan 31, 1927 | 22.75 | 
| Dec 31, 1926 | 22.70 | 
| Nov 30, 1926 | 22.71 | 
| Oct 31, 1926 | 22.86 | 
| Sep 30, 1926 | 22.99 | 
| Aug 31, 1926 | 23.14 | 
| Jul 31, 1926 | 23.03 | 
| Jun 30, 1926 | 22.79 | 
| May 31, 1926 | 22.68 | 
| Apr 30, 1926 | 22.57 | 
| Mar 31, 1926 | 22.71 | 
| Feb 28, 1926 | 22.59 | 
| Jan 31, 1926 | 22.61 | 
| Dec 31, 1925 | 22.62 | 
| Nov 30, 1925 | 22.01 | 
| Oct 31, 1925 | 21.91 | 
| Sep 30, 1925 | 21.42 | 
| Aug 31, 1925 | 20.92 | 
| Jul 31, 1925 | 20.45 | 
| Jun 30, 1925 | 20.18 | 
| May 31, 1925 | 19.91 | 
| Apr 30, 1925 | 19.53 | 
| Mar 31, 1925 | 18.91 | 
| Feb 28, 1925 | 18.52 | 
| Jan 31, 1925 | 17.92 | 
| Dec 31, 1924 | 17.42 | 
| Nov 30, 1924 | 17.60 | 
| Oct 31, 1924 | 17.67 | 
| Sep 30, 1924 | 17.86 | 
| Aug 31, 1924 | 18.04 | 
| Jul 31, 1924 | 18.01 | 
| Jun 30, 1924 | 18.20 | 
| May 31, 1924 | 18.28 | 
| Apr 30, 1924 | 18.36 | 
| Mar 31, 1924 | 18.33 | 
| Feb 29, 1924 | 18.30 | 
| Jan 31, 1924 | 18.27 | 
| Dec 31, 1923 | 18.35 | 
| Nov 30, 1923 | 17.90 | 
| Oct 31, 1923 | 17.45 | 
| Sep 30, 1923 | 17.09 | 
| Aug 31, 1923 | 16.73 | 
| Jul 31, 1923 | 16.18 | 
| Jun 30, 1923 | 15.91 | 
| May 31, 1923 | 15.54 | 
| Apr 30, 1923 | 15.08 | 
| Mar 31, 1923 | 14.70 | 
| Feb 28, 1923 | 14.24 | 
| Jan 31, 1923 | 13.77 | 
| Dec 31, 1922 | 13.23 | 
| Nov 30, 1922 | 12.66 | 
| Oct 31, 1922 | 12.09 | 
| Sep 30, 1922 | 11.51 | 
| Aug 31, 1922 | 10.86 | 
| Jul 31, 1922 | 10.09 | 
| Jun 30, 1922 | 9.51 | 
| May 31, 1922 | 8.86 | 
| Apr 30, 1922 | 8.21 | 
| Mar 31, 1922 | 7.57 | 
| Feb 28, 1922 | 6.84 | 
| Jan 31, 1922 | 6.20 | 
| Dec 31, 1921 | 5.43 | 
| Nov 30, 1921 | 6.19 | 
| Oct 31, 1921 | 6.94 | 
| Sep 30, 1921 | 7.73 | 
| Aug 31, 1921 | 8.42 | 
| Jul 31, 1921 | 9.20 | 
| Jun 30, 1921 | 10.03 | 
| May 31, 1921 | 10.75 | 
| Apr 30, 1921 | 11.28 | 
| Mar 31, 1921 | 11.91 | 
| Feb 28, 1921 | 12.59 | 
| Jan 31, 1921 | 12.92 | 
| Dec 31, 1920 | 13.36 | 
| Nov 30, 1920 | 13.27 | 
| Oct 31, 1920 | 13.38 | 
| Sep 30, 1920 | 13.49 | 
| Aug 31, 1920 | 13.46 | 
| Jul 31, 1920 | 13.30 | 
| Jun 30, 1920 | 13.41 | 
| May 31, 1920 | 13.77 | 
| Apr 30, 1920 | 14.15 | 
| Mar 31, 1920 | 14.76 | 
| Feb 29, 1920 | 15.09 | 
| Jan 31, 1920 | 15.43 | 
| Dec 31, 1919 | 15.94 | 
| Nov 30, 1919 | 16.37 | 
| Oct 31, 1919 | 16.83 | 
| Sep 30, 1919 | 17.20 | 
| Aug 31, 1919 | 17.39 | 
| Jul 31, 1919 | 17.78 | 
| Jun 30, 1919 | 18.40 | 
| May 31, 1919 | 18.50 | 
| Apr 30, 1919 | 18.82 | 
| Mar 31, 1919 | 19.26 | 
| Feb 28, 1919 | 19.60 | 
| Jan 31, 1919 | 19.34 | 
| Dec 31, 1918 | 19.44 | 
| Nov 30, 1918 | 20.15 | 
| Oct 31, 1918 | 21.02 | 
| Sep 30, 1918 | 21.94 | 
| Aug 31, 1918 | 22.87 | 
| Jul 31, 1918 | 23.84 | 
| Jun 30, 1918 | 25.01 | 
| May 31, 1918 | 25.90 | 
| Apr 30, 1918 | 26.99 | 
| Mar 31, 1918 | 27.95 | 
| Feb 28, 1918 | 28.31 | 
| Jan 31, 1918 | 29.07 | 
| Dec 31, 1917 | 30.27 | 
| Nov 30, 1917 | 31.22 | 
| Oct 31, 1917 | 31.73 | 
| Sep 30, 1917 | 32.71 | 
| Aug 31, 1917 | 33.97 | 
| Jul 31, 1917 | 35.03 | 
| Jun 30, 1917 | 35.01 | 
| May 31, 1917 | 36.09 | 
| Apr 30, 1917 | 37.21 | 
| Mar 31, 1917 | 39.63 | 
| Feb 28, 1917 | 40.17 | 
| Jan 31, 1917 | 41.78 | 
| Dec 31, 1916 | 42.73 | 
| Nov 30, 1916 | 41.58 | 
| Oct 31, 1916 | 40.77 | 
| Sep 30, 1916 | 39.93 | 
| Aug 31, 1916 | 39.03 | 
| Jul 31, 1916 | 37.77 | 
| Jun 30, 1916 | 36.15 | 
| May 31, 1916 | 34.85 | 
| Apr 30, 1916 | 33.53 | 
| Mar 31, 1916 | 32.15 | 
| Feb 29, 1916 | 30.79 | 
| Jan 31, 1916 | 29.10 | 
| Dec 31, 1915 | 27.68 | 
| Nov 30, 1915 | 26.74 | 
| Oct 31, 1915 | 26.05 | 
| Sep 30, 1915 | 25.34 | 
| Aug 31, 1915 | 24.38 | 
| Jul 31, 1915 | 23.42 | 
| Jun 30, 1915 | 22.45 | 
| May 31, 1915 | 21.49 | 
| Apr 30, 1915 | 20.73 | 
| Mar 31, 1915 | 19.96 | 
| Feb 28, 1915 | 18.79 | 
| Jan 31, 1915 | 17.64 | 
| Dec 31, 1914 | 16.68 | 
| Nov 30, 1914 | 16.81 | 
| Oct 31, 1914 | 17.27 | 
| Sep 30, 1914 | 17.39 | 
| Aug 31, 1914 | 17.68 | 
| Jul 31, 1914 | 18.33 | 
| Jun 30, 1914 | 18.82 | 
| May 31, 1914 | 19.12 | 
| Apr 30, 1914 | 19.61 | 
| Mar 31, 1914 | 19.72 | 
| Feb 28, 1914 | 20.02 | 
| Jan 31, 1914 | 20.11 | 
| Dec 31, 1913 | 20.41 | 
| Nov 30, 1913 | 20.39 | 
| Oct 31, 1913 | 20.79 | 
| Sep 30, 1913 | 20.98 | 
| Aug 31, 1913 | 21.38 | 
| Jul 31, 1913 | 21.57 | 
| Jun 30, 1913 | 21.98 | 
| May 31, 1913 | 22.40 | 
| Apr 30, 1913 | 22.37 | 
| Mar 31, 1913 | 22.56 | 
| Feb 28, 1913 | 22.75 | 
| Jan 31, 1913 | 22.95 | 
| Dec 31, 1912 | 23.38 | 
| Nov 30, 1912 | 22.84 | 
| Oct 31, 1912 | 22.54 | 
| Sep 30, 1912 | 22.23 | 
| Aug 31, 1912 | 22.15 | 
| Jul 31, 1912 | 22.05 | 
| Jun 30, 1912 | 21.74 | 
| May 31, 1912 | 21.24 | 
| Apr 30, 1912 | 20.93 | 
| Mar 31, 1912 | 21.24 | 
| Feb 29, 1912 | 21.35 | 
| Jan 31, 1912 | 21.26 | 
| Dec 31, 1911 | 21.14 | 
| Nov 30, 1911 | 21.35 | 
| Oct 31, 1911 | 21.53 | 
| Sep 30, 1911 | 21.94 | 
| Aug 31, 1911 | 22.59 | 
| Jul 31, 1911 | 23.73 | 
| Jun 30, 1911 | 24.44 | 
| May 31, 1911 | 24.87 | 
| Apr 30, 1911 | 25.30 | 
| Mar 31, 1911 | 24.91 | 
| Feb 28, 1911 | 25.61 | 
| Jan 31, 1911 | 25.21 | 
| Dec 31, 1910 | 25.62 | 
| Nov 30, 1910 | 25.71 | 
| Oct 31, 1910 | 25.28 | 
| Sep 30, 1910 | 24.63 | 
| Aug 31, 1910 | 24.46 | 
| Jul 31, 1910 | 24.30 | 
| Jun 30, 1910 | 24.38 | 
| May 31, 1910 | 24.24 | 
| Apr 30, 1910 | 23.87 | 
| Mar 31, 1910 | 24.16 | 
| Feb 28, 1910 | 24.71 | 
| Jan 31, 1910 | 24.79 | 
| Dec 31, 1909 | 24.65 | 
| Nov 30, 1909 | 24.38 | 
| Oct 31, 1909 | 24.13 | 
| Sep 30, 1909 | 24.10 | 
| Aug 31, 1909 | 23.85 | 
| Jul 31, 1909 | 23.56 | 
| Jun 30, 1909 | 23.04 | 
| May 31, 1909 | 22.77 | 
| Apr 30, 1909 | 22.46 | 
| Mar 31, 1909 | 22.40 | 
| Feb 28, 1909 | 21.86 | 
| Jan 31, 1909 | 21.56 | 
| Dec 31, 1908 | 20.79 | 
| Nov 30, 1908 | 21.26 | 
| Oct 31, 1908 | 21.72 | 
| Sep 30, 1908 | 22.22 | 
| Aug 31, 1908 | 22.46 | 
| Jul 31, 1908 | 22.71 | 
| Jun 30, 1908 | 23.19 | 
| May 31, 1908 | 23.45 | 
| Apr 30, 1908 | 23.69 | 
| Mar 31, 1908 | 24.22 | 
| Feb 29, 1908 | 24.48 | 
| Jan 31, 1908 | 24.44 | 
| Dec 31, 1907 | 24.44 | 
| Nov 30, 1907 | 24.22 | 
| Oct 31, 1907 | 23.52 | 
| Sep 30, 1907 | 24.04 | 
| Aug 31, 1907 | 24.34 | 
| Jul 31, 1907 | 24.63 | 
| Jun 30, 1907 | 24.92 | 
| May 31, 1907 | 25.49 | 
| Apr 30, 1907 | 26.33 | 
| Mar 31, 1907 | 26.64 | 
| Feb 28, 1907 | 26.64 | 
| Jan 31, 1907 | 27.52 | 
| Dec 31, 1906 | 27.54 | 
| Nov 30, 1906 | 27.55 | 
| Oct 31, 1906 | 27.58 | 
| Sep 30, 1906 | 27.91 | 
| Aug 31, 1906 | 27.92 | 
| Jul 31, 1906 | 28.27 | 
| Jun 30, 1906 | 27.06 | 
| May 31, 1906 | 26.78 | 
| Apr 30, 1906 | 26.77 | 
| Mar 31, 1906 | 26.49 | 
| Feb 28, 1906 | 26.20 | 
| Jan 31, 1906 | 25.91 | 
| Dec 31, 1905 | 25.63 | 
| Nov 30, 1905 | 25.35 | 
| Oct 31, 1905 | 25.04 | 
| Sep 30, 1905 | 24.45 | 
| Aug 31, 1905 | 23.61 | 
| Jul 31, 1905 | 23.28 | 
| Jun 30, 1905 | 22.69 | 
| May 31, 1905 | 22.11 | 
| Apr 30, 1905 | 21.29 | 
| Mar 31, 1905 | 20.71 | 
| Feb 28, 1905 | 19.89 | 
| Jan 31, 1905 | 19.32 | 
| Dec 31, 1904 | 18.74 | 
| Nov 30, 1904 | 18.87 | 
| Oct 31, 1904 | 19.43 | 
| Sep 30, 1904 | 19.56 | 
| Aug 31, 1904 | 19.93 | 
| Jul 31, 1904 | 20.29 | 
| Jun 30, 1904 | 20.42 | 
| May 31, 1904 | 20.56 | 
| Apr 30, 1904 | 20.22 | 
| Mar 31, 1904 | 20.13 | 
| Feb 29, 1904 | 20.02 | 
| Jan 31, 1904 | 20.61 | 
| Dec 31, 1903 | 21.22 | 
| Nov 30, 1903 | 21.56 | 
| Oct 31, 1903 | 21.65 | 
| Sep 30, 1903 | 21.72 | 
| Aug 31, 1903 | 22.31 | 
| Jul 31, 1903 | 22.64 | 
| Jun 30, 1903 | 22.97 | 
| May 31, 1903 | 23.30 | 
| Apr 30, 1903 | 23.10 | 
| Mar 31, 1903 | 23.42 | 
| Feb 28, 1903 | 22.94 | 
| Jan 31, 1903 | 23.26 | 
| Dec 31, 1902 | 23.84 | 
| Nov 30, 1902 | 23.68 | 
| Oct 31, 1902 | 22.52 | 
| Sep 30, 1902 | 23.66 | 
| Aug 31, 1902 | 23.50 | 
| Jul 31, 1902 | 22.81 | 
| Jun 30, 1902 | 22.38 | 
| May 31, 1902 | 22.19 | 
| Apr 30, 1902 | 22.03 | 
| Mar 31, 1902 | 21.84 | 
| Feb 28, 1902 | 21.39 | 
| Jan 31, 1902 | 20.95 | 
| Dec 31, 1901 | 20.27 | 
| Nov 30, 1901 | 20.44 | 
| Oct 31, 1901 | 20.63 | 
| Sep 30, 1901 | 20.56 | 
| Aug 31, 1901 | 20.73 | 
| Jul 31, 1901 | 20.93 | 
| Jun 30, 1901 | 21.11 | 
| May 31, 1901 | 21.04 | 
| Apr 30, 1901 | 20.97 | 
| Mar 31, 1901 | 20.65 | 
| Feb 28, 1901 | 20.58 | 
| Jan 31, 1901 | 20.24 | 
| Dec 31, 1900 | 20.43 | 
| Nov 30, 1900 | 20.17 | 
| Oct 31, 1900 | 20.17 | 
| Sep 30, 1900 | 19.94 | 
| Aug 31, 1900 | 20.17 | 
| Jul 31, 1900 | 19.94 | 
| Jun 30, 1900 | 20.17 | 
| May 31, 1900 | 19.94 | 
| Apr 30, 1900 | 19.46 | 
| Mar 31, 1900 | 19.46 | 
| Feb 28, 1900 | 19.46 | 
| Jan 31, 1900 | 19.68 | 
| Dec 31, 1899 | 19.68 | 
| Nov 30, 1899 | 19.49 | 
| Oct 31, 1899 | 19.26 | 
| Sep 30, 1899 | 19.05 | 
| Aug 31, 1899 | 19.30 | 
| Jul 31, 1899 | 19.08 | 
| Jun 30, 1899 | 18.83 | 
| May 31, 1899 | 18.60 | 
| Apr 30, 1899 | 18.10 | 
| Mar 31, 1899 | 17.83 | 
| Feb 28, 1899 | 17.33 | 
| Jan 31, 1899 | 17.29 | 
| Dec 31, 1898 | 16.77 | 
| Nov 30, 1898 | 16.87 | 
| Oct 31, 1898 | 16.70 | 
| Sep 30, 1898 | 16.54 | 
| Aug 31, 1898 | 16.38 | 
| Jul 31, 1898 | 16.21 | 
| Jun 30, 1898 | 15.82 | 
| May 31, 1898 | 14.64 | 
| Apr 30, 1898 | 15.49 | 
| Mar 31, 1898 | 15.34 | 
| Feb 28, 1898 | 15.18 | 
| Jan 31, 1898 | 15.24 | 
| Dec 31, 1897 | 15.08 | 
| Nov 30, 1897 | 14.68 | 
| Oct 31, 1897 | 14.27 | 
| Sep 30, 1897 | 13.66 | 
| Aug 31, 1897 | 13.64 | 
| Jul 31, 1897 | 13.84 | 
| Jun 30, 1897 | 13.41 | 
| May 31, 1897 | 12.98 | 
| Apr 30, 1897 | 12.37 | 
| Mar 31, 1897 | 11.77 | 
| Feb 28, 1897 | 11.35 | 
| Jan 31, 1897 | 10.93 | 
| Dec 31, 1896 | 10.22 | 
| Nov 30, 1896 | 10.38 | 
| Oct 31, 1896 | 10.85 | 
| Sep 30, 1896 | 11.35 | 
| Aug 31, 1896 | 11.52 | 
| Jul 31, 1896 | 11.70 | 
| Jun 30, 1896 | 11.87 | 
| May 31, 1896 | 11.87 | 
| Apr 30, 1896 | 11.85 | 
| Mar 31, 1896 | 11.83 | 
| Feb 29, 1896 | 12.00 | 
| Jan 31, 1896 | 12.00 | 
| Dec 31, 1895 | 11.98 | 
| Nov 30, 1895 | 11.47 | 
| Oct 31, 1895 | 11.11 | 
| Sep 30, 1895 | 10.76 | 
| Aug 31, 1895 | 10.41 | 
| Jul 31, 1895 | 9.91 | 
| Jun 30, 1895 | 9.43 | 
| May 31, 1895 | 9.21 | 
| Apr 30, 1895 | 8.99 | 
| Mar 31, 1895 | 9.00 | 
| Feb 28, 1895 | 8.63 | 
| Jan 31, 1895 | 8.26 | 
| Dec 31, 1894 | 7.89 | 
| Nov 30, 1894 | 8.19 | 
| Oct 31, 1894 | 8.60 | 
| Sep 30, 1894 | 8.75 | 
| Aug 31, 1894 | 9.26 | 
| Jul 31, 1894 | 9.95 | 
| Jun 30, 1894 | 10.36 | 
| May 31, 1894 | 10.76 | 
| Apr 30, 1894 | 11.18 | 
| Mar 31, 1894 | 11.59 | 
| Feb 28, 1894 | 11.66 | 
| Jan 31, 1894 | 11.90 | 
| Dec 31, 1893 | 11.97 | 
| Nov 30, 1893 | 12.21 | 
| Oct 31, 1893 | 12.30 | 
| Sep 30, 1893 | 12.88 | 
| Aug 31, 1893 | 13.83 | 
| Jul 31, 1893 | 13.70 | 
| Jun 30, 1893 | 13.75 | 
| May 31, 1893 | 13.80 | 
| Apr 30, 1893 | 14.01 | 
| Mar 31, 1893 | 14.23 | 
| Feb 28, 1893 | 14.26 | 
| Jan 31, 1893 | 14.80 | 
| Dec 31, 1892 | 15.75 | 
| Nov 30, 1892 | 15.83 | 
| Oct 31, 1892 | 16.13 | 
| Sep 30, 1892 | 16.02 | 
| Aug 31, 1892 | 15.91 | 
| Jul 31, 1892 | 16.02 | 
| Jun 30, 1892 | 16.34 | 
| May 31, 1892 | 16.22 | 
| Apr 30, 1892 | 16.11 | 
| Mar 31, 1892 | 15.77 | 
| Feb 29, 1892 | 15.25 | 
| Jan 31, 1892 | 15.14 | 
| Dec 31, 1891 | 14.65 | 
| Nov 30, 1891 | 14.47 | 
| Oct 31, 1891 | 14.12 | 
| Sep 30, 1891 | 13.94 | 
| Aug 31, 1891 | 13.59 | 
| Jul 31, 1891 | 13.41 | 
| Jun 30, 1891 | 13.08 | 
| May 31, 1891 | 12.60 | 
| Apr 30, 1891 | 12.28 | 
| Mar 31, 1891 | 12.27 | 
| Feb 28, 1891 | 12.23 | 
| Jan 31, 1891 | 12.22 | 
| Dec 31, 1890 | 11.89 | 
| Nov 30, 1890 | 11.93 | 
| Oct 31, 1890 | 11.68 | 
| Sep 30, 1890 | 11.71 | 
| Aug 31, 1890 | 11.89 | 
| Jul 31, 1890 | 12.36 | 
| Jun 30, 1890 | 12.40 | 
| May 31, 1890 | 12.43 | 
| Apr 30, 1890 | 12.63 | 
| Mar 31, 1890 | 12.67 | 
| Feb 28, 1890 | 12.70 | 
| Jan 31, 1890 | 12.74 | 
| Dec 31, 1889 | 12.46 | 
| Nov 30, 1889 | 12.47 | 
| Oct 31, 1889 | 12.32 | 
| Sep 30, 1889 | 12.19 | 
| Aug 31, 1889 | 12.21 | 
| Jul 31, 1889 | 12.06 | 
| Jun 30, 1889 | 11.92 | 
| May 31, 1889 | 11.78 | 
| Apr 30, 1889 | 11.35 | 
| Mar 31, 1889 | 11.21 | 
| Feb 28, 1889 | 10.94 | 
| Jan 31, 1889 | 10.68 | 
| Dec 31, 1888 | 10.17 | 
| Nov 30, 1888 | 10.50 | 
| Oct 31, 1888 | 10.96 | 
| Sep 30, 1888 | 11.41 | 
| Aug 31, 1888 | 11.75 | 
| Jul 31, 1888 | 12.08 | 
| Jun 30, 1888 | 12.57 | 
| May 31, 1888 | 12.75 | 
| Apr 30, 1888 | 12.94 | 
| Mar 31, 1888 | 13.11 | 
| Feb 29, 1888 | 13.43 | 
| Jan 31, 1888 | 13.61 | 
| Dec 31, 1887 | 14.09 | 
| Nov 30, 1887 | 14.32 | 
| Oct 31, 1887 | 14.39 | 
| Sep 30, 1887 | 14.46 | 
| Aug 31, 1887 | 14.19 | 
| Jul 31, 1887 | 14.25 | 
| Jun 30, 1887 | 13.99 | 
| May 31, 1887 | 13.72 | 
| Apr 30, 1887 | 13.62 | 
| Mar 31, 1887 | 13.52 | 
| Feb 28, 1887 | 13.42 | 
| Jan 31, 1887 | 13.48 | 
| Dec 31, 1886 | 13.71 | 
| Nov 30, 1886 | 13.66 | 
| Oct 31, 1886 | 13.45 | 
| Sep 30, 1886 | 13.24 | 
| Aug 31, 1886 | 13.03 | 
| Jul 31, 1886 | 12.98 | 
| Jun 30, 1886 | 12.92 | 
| May 31, 1886 | 12.56 | 
| Apr 30, 1886 | 12.05 | 
| Mar 31, 1886 | 11.69 | 
| Feb 28, 1886 | 11.35 | 
| Jan 31, 1886 | 11.15 | 
| Dec 31, 1885 | 10.69 | 
| Nov 30, 1885 | 11.08 | 
| Oct 31, 1885 | 11.35 | 
| Sep 30, 1885 | 11.48 | 
| Aug 31, 1885 | 11.49 | 
| Jul 31, 1885 | 11.63 | 
| Jun 30, 1885 | 11.89 | 
| May 31, 1885 | 11.75 | 
| Apr 30, 1885 | 11.61 | 
| Mar 31, 1885 | 11.88 | 
| Feb 28, 1885 | 11.74 | 
| Jan 31, 1885 | 12.00 | 
| Dec 31, 1884 | 12.13 | 
| Nov 30, 1884 | 12.29 | 
| Oct 31, 1884 | 12.30 | 
| Sep 30, 1884 | 12.44 | 
| Aug 31, 1884 | 12.59 | 
| Jul 31, 1884 | 12.87 | 
| Jun 30, 1884 | 13.00 | 
| May 31, 1884 | 13.27 | 
| Apr 30, 1884 | 13.26 | 
| Mar 31, 1884 | 13.25 | 
| Feb 29, 1884 | 13.51 | 
| Jan 31, 1884 | 13.78 | 
| Dec 31, 1883 | 14.04 | 
| Nov 30, 1883 | 14.28 | 
| Oct 31, 1883 | 14.22 | 
| Sep 30, 1883 | 14.30 | 
| Aug 31, 1883 | 14.25 | 
| Jul 31, 1883 | 14.34 | 
| Jun 30, 1883 | 14.14 | 
| May 31, 1883 | 13.80 | 
| Apr 30, 1883 | 13.74 | 
| Mar 31, 1883 | 13.70 | 
| Feb 28, 1883 | 13.65 | 
| Jan 31, 1883 | 13.86 | 
| Dec 31, 1882 | 13.94 | 
| Nov 30, 1882 | 13.83 | 
| Oct 31, 1882 | 13.74 | 
| Sep 30, 1882 | 13.63 | 
| Aug 31, 1882 | 13.29 | 
| Jul 31, 1882 | 13.44 | 
| Jun 30, 1882 | 13.35 | 
| May 31, 1882 | 13.49 | 
| Apr 30, 1882 | 13.64 | 
| Mar 31, 1882 | 13.79 | 
| Feb 28, 1882 | 13.81 | 
| Jan 31, 1882 | 13.98 | 
| Dec 31, 1881 | 14.00 | 
| Nov 30, 1881 | 14.14 | 
| Oct 31, 1881 | 14.13 | 
| Sep 30, 1881 | 14.40 | 
| Aug 31, 1881 | 15.10 | 
| Jul 31, 1881 | 15.53 | 
| Jun 30, 1881 | 15.84 | 
| May 31, 1881 | 15.98 | 
| Apr 30, 1881 | 15.96 | 
| Mar 31, 1881 | 16.27 | 
| Feb 28, 1881 | 16.41 | 
| Jan 31, 1881 | 16.71 | 
| Dec 31, 1880 | 16.69 | 
| Nov 30, 1880 | 16.54 | 
| Oct 31, 1880 | 16.40 | 
| Sep 30, 1880 | 16.08 | 
| Aug 31, 1880 | 15.91 | 
| Jul 31, 1880 | 15.59 | 
| Jun 30, 1880 | 15.27 | 
| May 31, 1880 | 14.64 | 
| Apr 30, 1880 | 13.92 | 
| Mar 31, 1880 | 13.08 | 
| Feb 29, 1880 | 12.92 | 
| Jan 31, 1880 | 12.62 | 
| Dec 31, 1879 | 12.69 | 
| Nov 30, 1879 | 12.87 | 
| Oct 31, 1879 | 13.35 | 
| Sep 30, 1879 | 13.87 | 
| Aug 31, 1879 | 14.13 | 
| Jul 31, 1879 | 13.89 | 
| Jun 30, 1879 | 13.82 | 
| May 31, 1879 | 13.43 | 
| Apr 30, 1879 | 13.20 | 
| Mar 31, 1879 | 12.81 | 
| Feb 28, 1879 | 12.45 | 
| Jan 31, 1879 | 12.36 | 
| Dec 31, 1878 | 12.28 | 
| Nov 30, 1878 | 11.97 | 
| Oct 31, 1878 | 11.79 | 
| Sep 30, 1878 | 11.64 | 
| Aug 31, 1878 | 11.61 | 
| Jul 31, 1878 | 11.70 | 
| Jun 30, 1878 | 11.81 | 
| May 31, 1878 | 11.51 | 
| Apr 30, 1878 | 11.10 | 
| Mar 31, 1878 | 10.96 | 
| Feb 28, 1878 | 10.71 | 
| Jan 31, 1878 | 10.56 | 
| Dec 31, 1877 | 10.22 | 
| Nov 30, 1877 | 10.16 | 
| Oct 31, 1877 | 9.91 | 
| Sep 30, 1877 | 9.85 | 
| Aug 31, 1877 | 9.70 | 
| Jul 31, 1877 | 9.28 | 
| Jun 30, 1877 | 9.31 | 
| May 31, 1877 | 8.76 | 
| Apr 30, 1877 | 8.87 | 
| Mar 31, 1877 | 9.07 | 
| Feb 28, 1877 | 8.61 | 
| Jan 31, 1877 | 8.34 | 
| Dec 31, 1876 | 8.44 | 
| Nov 30, 1876 | 8.80 | 
| Oct 31, 1876 | 9.08 | 
| Sep 30, 1876 | 9.45 | 
| Aug 31, 1876 | 9.76 | 
| Jul 31, 1876 | 10.06 | 
| Jun 30, 1876 | 10.27 | 
| May 31, 1876 | 10.21 | 
| Apr 30, 1876 | 10.04 | 
| Mar 31, 1876 | 10.15 | 
| Feb 29, 1876 | 10.35 | 
| Jan 31, 1876 | 10.55 | 
| Dec 31, 1875 | 10.66 | 
| Nov 30, 1875 | 10.81 | 
| Oct 31, 1875 | 10.97 | 
| Sep 30, 1875 | 11.21 | 
| Aug 31, 1875 | 11.35 | 
| Jul 31, 1875 | 11.69 | 
| Jun 30, 1875 | 11.93 | 
| May 31, 1875 | 11.97 | 
| Apr 30, 1875 | 11.91 | 
| Mar 31, 1875 | 12.24 | 
| Feb 28, 1875 | 12.48 | 
| Jan 31, 1875 | 12.71 | 
| Dec 31, 1874 | 12.95 | 
| Nov 30, 1874 | 12.95 | 
| Oct 31, 1874 | 12.84 | 
| Sep 30, 1874 | 12.63 | 
| Aug 31, 1874 | 12.63 | 
| Jul 31, 1874 | 12.53 | 
| Jun 30, 1874 | 12.63 | 
| May 31, 1874 | 12.34 | 
| Apr 30, 1874 | 12.24 | 
| Mar 31, 1874 | 12.05 | 
| Feb 28, 1874 | 12.05 | 
| Jan 31, 1874 | 12.05 | 
| Dec 31, 1873 | 12.24 | 
| Nov 30, 1873 | 12.47 | 
| Oct 31, 1873 | 12.01 | 
| Sep 30, 1873 | 11.67 | 
| Aug 31, 1873 | 11.61 | 
| Jul 31, 1873 | 11.54 | 
| Jun 30, 1873 | 11.48 | 
| May 31, 1873 | 11.08 | 
| Apr 30, 1873 | 10.77 | 
| Mar 31, 1873 | 10.71 | 
| Feb 28, 1873 | 10.65 | 
| Jan 31, 1873 | 10.83 | 
| Dec 31, 1872 | 10.77 | 
| Nov 30, 1872 | 10.55 | 
| Oct 31, 1872 | 10.80 | 
| Sep 30, 1872 | 10.50 | 
| Aug 31, 1872 | 10.52 | 
| Jul 31, 1872 | 10.53 | 
| Jun 30, 1872 | 10.32 | 
| May 31, 1872 | 10.18 | 
| Apr 30, 1872 | 10.12 | 
| Mar 31, 1872 | 10.28 | 
| Feb 29, 1872 | 10.37 | 
| Jan 31, 1872 | 10.31 | 
| Dec 31, 1871 | 10.24 | 
| Nov 30, 1871 | 10.48 | 
| Oct 31, 1871 | 10.48 | 
| Sep 30, 1871 | 10.64 | 
| Aug 31, 1871 | 10.90 | 
| Jul 31, 1871 | 10.73 | 
| Jun 30, 1871 | 10.73 | 
| May 31, 1871 | 10.56 | 
| Apr 30, 1871 | 10.32 | 
| Mar 31, 1871 | 9.95 | 
| Feb 28, 1871 | 10.09 | 
| Jan 31, 1871 | 10.40 | 
S&P 500 Earnings Per Share. 12-month real earnings per share — inflation adjusted, constant August, 2025 dollars.
- 
Sources:
- Standard & Poor’s for current S&P 500 Earnings.
- Robert Shiller and 
his book Irrational Exuberancefor historic S&P 500 Earnings.