| Date | Value Value |
|---|---|
| Mar 1, 2021 | 61.50% |
| Feb 1, 2021 | 61.40% |
| Jan 1, 2021 | 61.40% |
| Dec 1, 2020 | 61.50% |
| Nov 1, 2020 | 61.50% |
| Oct 1, 2020 | 61.60% |
| Sep 1, 2020 | 61.40% |
| Aug 1, 2020 | 61.70% |
| Jul 1, 2020 | 61.50% |
| Jun 1, 2020 | 61.40% |
| May 1, 2020 | 60.80% |
| Apr 1, 2020 | 60.20% |
| Mar 1, 2020 | 62.60% |
| Feb 1, 2020 | 63.30% |
| Jan 1, 2020 | 63.40% |
| Dec 1, 2019 | 63.30% |
| Nov 1, 2019 | 63.20% |
| Oct 1, 2019 | 63.20% |
| Sep 1, 2019 | 63.10% |
| Aug 1, 2019 | 63.20% |
| Jul 1, 2019 | 63.10% |
| Jun 1, 2019 | 62.90% |
| May 1, 2019 | 62.90% |
| Apr 1, 2019 | 62.90% |
| Mar 1, 2019 | 63.10% |
| Feb 1, 2019 | 63.10% |
| Jan 1, 2019 | 63.10% |
| Dec 1, 2018 | 63.00% |
| Nov 1, 2018 | 62.90% |
| Oct 1, 2018 | 62.80% |
| Sep 1, 2018 | 62.70% |
| Aug 1, 2018 | 62.70% |
| Jul 1, 2018 | 63.00% |
| Jun 1, 2018 | 63.00% |
| May 1, 2018 | 62.90% |
| Apr 1, 2018 | 62.90% |
| Mar 1, 2018 | 62.90% |
| Feb 1, 2018 | 63.00% |
| Jan 1, 2018 | 62.70% |
| Dec 1, 2017 | 62.70% |
| Nov 1, 2017 | 62.70% |
| Oct 1, 2017 | 62.70% |
| Sep 1, 2017 | 63.00% |
| Aug 1, 2017 | 62.90% |
| Jul 1, 2017 | 62.90% |
| Jun 1, 2017 | 62.80% |
| May 1, 2017 | 62.80% |
| Apr 1, 2017 | 63.00% |
| Mar 1, 2017 | 63.00% |
| Feb 1, 2017 | 62.80% |
| Jan 1, 2017 | 62.80% |
| Dec 1, 2016 | 62.70% |
| Nov 1, 2016 | 62.70% |
| Oct 1, 2016 | 62.80% |
| Sep 1, 2016 | 62.90% |
| Aug 1, 2016 | 62.90% |
| Jul 1, 2016 | 62.80% |
| Jun 1, 2016 | 62.70% |
| May 1, 2016 | 62.70% |
| Apr 1, 2016 | 62.90% |
| Mar 1, 2016 | 63.00% |
| Feb 1, 2016 | 62.80% |
| Jan 1, 2016 | 62.70% |
| Dec 1, 2015 | 62.70% |
| Nov 1, 2015 | 62.50% |
| Oct 1, 2015 | 62.50% |
| Sep 1, 2015 | 62.40% |
| Aug 1, 2015 | 62.60% |
| Jul 1, 2015 | 62.60% |
| Jun 1, 2015 | 62.70% |
| May 1, 2015 | 62.90% |
| Apr 1, 2015 | 62.80% |
| Mar 1, 2015 | 62.60% |
| Feb 1, 2015 | 62.70% |
| Jan 1, 2015 | 62.90% |
| Dec 1, 2014 | 62.80% |
| Nov 1, 2014 | 62.90% |
| Oct 1, 2014 | 62.90% |
| Sep 1, 2014 | 62.80% |
| Aug 1, 2014 | 62.90% |
| Jul 1, 2014 | 62.90% |
| Jun 1, 2014 | 62.80% |
| May 1, 2014 | 62.90% |
| Apr 1, 2014 | 62.80% |
| Mar 1, 2014 | 63.10% |
| Feb 1, 2014 | 62.90% |
| Jan 1, 2014 | 62.90% |
| Dec 1, 2013 | 62.90% |
| Nov 1, 2013 | 63.00% |
| Oct 1, 2013 | 62.80% |
| Sep 1, 2013 | 63.20% |
| Aug 1, 2013 | 63.30% |
| Jul 1, 2013 | 63.30% |
| Jun 1, 2013 | 63.40% |
| May 1, 2013 | 63.40% |
| Apr 1, 2013 | 63.40% |
| Mar 1, 2013 | 63.30% |
| Feb 1, 2013 | 63.40% |
| Jan 1, 2013 | 63.70% |
| Dec 1, 2012 | 63.70% |
| Nov 1, 2012 | 63.60% |
| Oct 1, 2012 | 63.80% |
| Sep 1, 2012 | 63.60% |
| Aug 1, 2012 | 63.50% |
| Jul 1, 2012 | 63.70% |
| Jun 1, 2012 | 63.80% |
| May 1, 2012 | 63.70% |
| Apr 1, 2012 | 63.70% |
| Mar 1, 2012 | 63.80% |
| Feb 1, 2012 | 63.80% |
| Jan 1, 2012 | 63.70% |
| Dec 1, 2011 | 64.00% |
| Nov 1, 2011 | 64.10% |
| Oct 1, 2011 | 64.10% |
| Sep 1, 2011 | 64.20% |
| Aug 1, 2011 | 64.10% |
| Jul 1, 2011 | 64.00% |
| Jun 1, 2011 | 64.00% |
| May 1, 2011 | 64.10% |
| Apr 1, 2011 | 64.20% |
| Mar 1, 2011 | 64.20% |
| Feb 1, 2011 | 64.10% |
| Jan 1, 2011 | 64.20% |
| Dec 1, 2010 | 64.30% |
| Nov 1, 2010 | 64.60% |
| Oct 1, 2010 | 64.40% |
| Sep 1, 2010 | 64.60% |
| Aug 1, 2010 | 64.70% |
| Jul 1, 2010 | 64.60% |
| Jun 1, 2010 | 64.60% |
| May 1, 2010 | 64.90% |
| Apr 1, 2010 | 65.20% |
| Mar 1, 2010 | 64.90% |
| Feb 1, 2010 | 64.90% |
| Jan 1, 2010 | 64.80% |
| Dec 1, 2009 | 64.60% |
| Nov 1, 2009 | 65.00% |
| Oct 1, 2009 | 65.00% |
| Sep 1, 2009 | 65.10% |
| Aug 1, 2009 | 65.40% |
| Jul 1, 2009 | 65.50% |
| Jun 1, 2009 | 65.70% |
| May 1, 2009 | 65.70% |
| Apr 1, 2009 | 65.70% |
| Mar 1, 2009 | 65.60% |
| Feb 1, 2009 | 65.80% |
| Jan 1, 2009 | 65.70% |
| Dec 1, 2008 | 65.80% |
| Nov 1, 2008 | 65.90% |
| Oct 1, 2008 | 66.00% |
| Sep 1, 2008 | 66.00% |
| Aug 1, 2008 | 66.10% |
| Jul 1, 2008 | 66.10% |
| Jun 1, 2008 | 66.10% |
| May 1, 2008 | 66.10% |
| Apr 1, 2008 | 65.90% |
| Mar 1, 2008 | 66.10% |
| Feb 1, 2008 | 66.00% |
| Jan 1, 2008 | 66.20% |
| Dec 1, 2007 | 66.00% |
| Nov 1, 2007 | 66.00% |
| Oct 1, 2007 | 65.80% |
| Sep 1, 2007 | 66.00% |
| Aug 1, 2007 | 65.80% |
| Jul 1, 2007 | 66.00% |
| Jun 1, 2007 | 66.00% |
| May 1, 2007 | 66.00% |
| Apr 1, 2007 | 65.90% |
| Mar 1, 2007 | 66.20% |
| Feb 1, 2007 | 66.30% |
| Jan 1, 2007 | 66.40% |
| Dec 1, 2006 | 66.40% |
| Nov 1, 2006 | 66.30% |
| Oct 1, 2006 | 66.20% |
| Sep 1, 2006 | 66.10% |
| Aug 1, 2006 | 66.20% |
| Jul 1, 2006 | 66.10% |
| Jun 1, 2006 | 66.20% |
| May 1, 2006 | 66.10% |
| Apr 1, 2006 | 66.10% |
| Mar 1, 2006 | 66.20% |
| Feb 1, 2006 | 66.10% |
| Jan 1, 2006 | 66.00% |
| Dec 1, 2005 | 66.00% |
| Nov 1, 2005 | 66.00% |
| Oct 1, 2005 | 66.10% |
| Sep 1, 2005 | 66.10% |
| Aug 1, 2005 | 66.20% |
| Jul 1, 2005 | 66.10% |
| Jun 1, 2005 | 66.10% |
| May 1, 2005 | 66.10% |
| Apr 1, 2005 | 66.10% |
| Mar 1, 2005 | 65.90% |
| Feb 1, 2005 | 65.90% |
| Jan 1, 2005 | 65.80% |
| Dec 1, 2004 | 65.90% |
| Nov 1, 2004 | 66.00% |
| Oct 1, 2004 | 65.90% |
| Sep 1, 2004 | 65.80% |
| Aug 1, 2004 | 66.00% |
| Jul 1, 2004 | 66.10% |
| Jun 1, 2004 | 66.10% |
| May 1, 2004 | 66.00% |
| Apr 1, 2004 | 65.90% |
| Mar 1, 2004 | 66.00% |
| Feb 1, 2004 | 66.00% |
| Jan 1, 2004 | 66.10% |
| Dec 1, 2003 | 65.90% |
| Nov 1, 2003 | 66.10% |
| Oct 1, 2003 | 66.10% |
| Sep 1, 2003 | 66.10% |
| Aug 1, 2003 | 66.10% |
| Jul 1, 2003 | 66.20% |
| Jun 1, 2003 | 66.50% |
| May 1, 2003 | 66.40% |
| Apr 1, 2003 | 66.40% |
| Mar 1, 2003 | 66.30% |
| Feb 1, 2003 | 66.40% |
| Jan 1, 2003 | 66.40% |
| Dec 1, 2002 | 66.30% |
| Nov 1, 2002 | 66.40% |
| Oct 1, 2002 | 66.60% |
| Sep 1, 2002 | 66.70% |
| Aug 1, 2002 | 66.60% |
| Jul 1, 2002 | 66.50% |
| Jun 1, 2002 | 66.60% |
| May 1, 2002 | 66.70% |
| Apr 1, 2002 | 66.70% |
| Mar 1, 2002 | 66.60% |
| Feb 1, 2002 | 66.80% |
| Jan 1, 2002 | 66.50% |
| Dec 1, 2001 | 66.70% |
| Nov 1, 2001 | 66.70% |
| Oct 1, 2001 | 66.70% |
| Sep 1, 2001 | 66.80% |
| Aug 1, 2001 | 66.50% |
| Jul 1, 2001 | 66.80% |
| Jun 1, 2001 | 66.70% |
| May 1, 2001 | 66.70% |
| Apr 1, 2001 | 66.90% |
| Mar 1, 2001 | 67.20% |
| Feb 1, 2001 | 67.10% |
| Jan 1, 2001 | 67.20% |
| Dec 1, 2000 | 67.00% |
| Nov 1, 2000 | 66.90% |
| Oct 1, 2000 | 66.80% |
| Sep 1, 2000 | 66.90% |
| Aug 1, 2000 | 66.90% |
| Jul 1, 2000 | 66.90% |
| Jun 1, 2000 | 67.10% |
| May 1, 2000 | 67.10% |
| Apr 1, 2000 | 67.30% |
| Mar 1, 2000 | 67.30% |
| Feb 1, 2000 | 67.30% |
| Jan 1, 2000 | 67.30% |
| Dec 1, 1999 | 67.10% |
| Nov 1, 1999 | 67.10% |
| Oct 1, 1999 | 67.00% |
| Sep 1, 1999 | 67.00% |
| Aug 1, 1999 | 67.00% |
| Jul 1, 1999 | 67.10% |
| Jun 1, 1999 | 67.10% |
| May 1, 1999 | 67.10% |
| Apr 1, 1999 | 67.10% |
| Mar 1, 1999 | 67.00% |
| Feb 1, 1999 | 67.20% |
| Jan 1, 1999 | 67.20% |
| Dec 1, 1998 | 67.20% |
| Nov 1, 1998 | 67.10% |
| Oct 1, 1998 | 67.20% |
| Sep 1, 1998 | 67.20% |
| Aug 1, 1998 | 67.00% |
| Jul 1, 1998 | 67.00% |
| Jun 1, 1998 | 67.00% |
| May 1, 1998 | 67.00% |
| Apr 1, 1998 | 67.00% |
| Mar 1, 1998 | 67.10% |
| Feb 1, 1998 | 67.10% |
| Jan 1, 1998 | 67.10% |
| Dec 1, 1997 | 67.20% |
| Nov 1, 1997 | 67.20% |
| Oct 1, 1997 | 67.10% |
| Sep 1, 1997 | 67.10% |
| Aug 1, 1997 | 67.20% |
| Jul 1, 1997 | 67.20% |
| Jun 1, 1997 | 67.10% |
| May 1, 1997 | 67.10% |
| Apr 1, 1997 | 67.10% |
| Mar 1, 1997 | 67.10% |
| Feb 1, 1997 | 66.90% |
| Jan 1, 1997 | 67.00% |
| Dec 1, 1996 | 67.00% |
| Nov 1, 1996 | 67.00% |
| Oct 1, 1996 | 67.00% |
| Sep 1, 1996 | 66.90% |
| Aug 1, 1996 | 66.70% |
| Jul 1, 1996 | 66.90% |
| Jun 1, 1996 | 66.70% |
| May 1, 1996 | 66.70% |
| Apr 1, 1996 | 66.70% |
| Mar 1, 1996 | 66.60% |
| Feb 1, 1996 | 66.60% |
| Jan 1, 1996 | 66.40% |
| Dec 1, 1995 | 66.40% |
| Nov 1, 1995 | 66.50% |
| Oct 1, 1995 | 66.60% |
| Sep 1, 1995 | 66.60% |
| Aug 1, 1995 | 66.60% |
| Jul 1, 1995 | 66.60% |
| Jun 1, 1995 | 66.50% |
| May 1, 1995 | 66.50% |
| Apr 1, 1995 | 66.90% |
| Mar 1, 1995 | 66.70% |
| Feb 1, 1995 | 66.80% |
| Jan 1, 1995 | 66.80% |
| Dec 1, 1994 | 66.70% |
| Nov 1, 1994 | 66.70% |
| Oct 1, 1994 | 66.70% |
| Sep 1, 1994 | 66.60% |
| Aug 1, 1994 | 66.60% |
| Jul 1, 1994 | 66.40% |
| Jun 1, 1994 | 66.40% |
| May 1, 1994 | 66.60% |
| Apr 1, 1994 | 66.50% |
| Mar 1, 1994 | 66.50% |
| Feb 1, 1994 | 66.60% |
| Jan 1, 1994 | 66.60% |
| Dec 1, 1993 | 66.40% |
| Nov 1, 1993 | 66.30% |
| Oct 1, 1993 | 66.30% |
| Sep 1, 1993 | 66.20% |
| Aug 1, 1993 | 66.40% |
| Jul 1, 1993 | 66.40% |
| Jun 1, 1993 | 66.50% |
| May 1, 1993 | 66.40% |
| Apr 1, 1993 | 66.10% |
| Mar 1, 1993 | 66.20% |
| Feb 1, 1993 | 66.20% |
| Jan 1, 1993 | 66.20% |
| Dec 1, 1992 | 66.30% |
| Nov 1, 1992 | 66.30% |
| Oct 1, 1992 | 66.20% |
| Sep 1, 1992 | 66.50% |
| Aug 1, 1992 | 66.60% |
| Jul 1, 1992 | 66.70% |
| Jun 1, 1992 | 66.70% |
| May 1, 1992 | 66.60% |
| Apr 1, 1992 | 66.50% |
| Mar 1, 1992 | 66.40% |
| Feb 1, 1992 | 66.20% |
| Jan 1, 1992 | 66.30% |
| Dec 1, 1991 | 66.00% |
| Nov 1, 1991 | 66.10% |
| Oct 1, 1991 | 66.10% |
| Sep 1, 1991 | 66.20% |
| Aug 1, 1991 | 66.00% |
| Jul 1, 1991 | 66.10% |
| Jun 1, 1991 | 66.20% |
| May 1, 1991 | 66.20% |
| Apr 1, 1991 | 66.40% |
| Mar 1, 1991 | 66.30% |
| Feb 1, 1991 | 66.20% |
| Jan 1, 1991 | 66.20% |
| Dec 1, 1990 | 66.40% |
| Nov 1, 1990 | 66.40% |
| Oct 1, 1990 | 66.40% |
| Sep 1, 1990 | 66.40% |
| Aug 1, 1990 | 66.50% |
| Jul 1, 1990 | 66.50% |
| Jun 1, 1990 | 66.40% |
| May 1, 1990 | 66.60% |
| Apr 1, 1990 | 66.60% |
| Mar 1, 1990 | 66.70% |
| Feb 1, 1990 | 66.70% |
| Jan 1, 1990 | 66.80% |
| Dec 1, 1989 | 66.50% |
| Nov 1, 1989 | 66.60% |
| Oct 1, 1989 | 66.50% |
| Sep 1, 1989 | 66.40% |
| Aug 1, 1989 | 66.50% |
| Jul 1, 1989 | 66.50% |
| Jun 1, 1989 | 66.50% |
| May 1, 1989 | 66.30% |
| Apr 1, 1989 | 66.40% |
| Mar 1, 1989 | 66.30% |
| Feb 1, 1989 | 66.30% |
| Jan 1, 1989 | 66.50% |
| Dec 1, 1988 | 66.10% |
| Nov 1, 1988 | 66.20% |
| Oct 1, 1988 | 66.00% |
| Sep 1, 1988 | 65.90% |
| Aug 1, 1988 | 66.10% |
| Jul 1, 1988 | 65.90% |
| Jun 1, 1988 | 65.80% |
| May 1, 1988 | 65.70% |
| Apr 1, 1988 | 65.80% |
| Mar 1, 1988 | 65.70% |
| Feb 1, 1988 | 65.90% |
| Jan 1, 1988 | 65.80% |
| Dec 1, 1987 | 65.70% |
| Nov 1, 1987 | 65.70% |
| Oct 1, 1987 | 65.70% |
| Sep 1, 1987 | 65.50% |
| Aug 1, 1987 | 65.70% |
| Jul 1, 1987 | 65.60% |
| Jun 1, 1987 | 65.50% |
| May 1, 1987 | 65.70% |
| Apr 1, 1987 | 65.40% |
| Mar 1, 1987 | 65.50% |
| Feb 1, 1987 | 65.50% |
| Jan 1, 1987 | 65.40% |
| Dec 1, 1986 | 65.30% |
| Nov 1, 1986 | 65.40% |
| Oct 1, 1986 | 65.40% |
| Sep 1, 1986 | 65.40% |
| Aug 1, 1986 | 65.30% |
| Jul 1, 1986 | 65.40% |
| Jun 1, 1986 | 65.40% |
| May 1, 1986 | 65.20% |
| Apr 1, 1986 | 65.10% |
| Mar 1, 1986 | 65.10% |
| Feb 1, 1986 | 65.00% |
| Jan 1, 1986 | 64.90% |
| Dec 1, 1985 | 65.00% |
| Nov 1, 1985 | 64.90% |
| Oct 1, 1985 | 65.00% |
| Sep 1, 1985 | 64.90% |
| Aug 1, 1985 | 64.60% |
| Jul 1, 1985 | 64.70% |
| Jun 1, 1985 | 64.60% |
| May 1, 1985 | 64.80% |
| Apr 1, 1985 | 64.90% |
| Mar 1, 1985 | 64.90% |
| Feb 1, 1985 | 64.70% |
| Jan 1, 1985 | 64.70% |
| Dec 1, 1984 | 64.60% |
| Nov 1, 1984 | 64.50% |
| Oct 1, 1984 | 64.40% |
| Sep 1, 1984 | 64.40% |
| Aug 1, 1984 | 64.40% |
| Jul 1, 1984 | 64.60% |
| Jun 1, 1984 | 64.60% |
| May 1, 1984 | 64.50% |
| Apr 1, 1984 | 64.30% |
| Mar 1, 1984 | 64.10% |
| Feb 1, 1984 | 64.10% |
| Jan 1, 1984 | 63.90% |
| Dec 1, 1983 | 64.10% |
| Nov 1, 1983 | 64.10% |
| Oct 1, 1983 | 64.00% |
| Sep 1, 1983 | 64.30% |
| Aug 1, 1983 | 64.30% |
| Jul 1, 1983 | 64.10% |
| Jun 1, 1983 | 64.30% |
| May 1, 1983 | 63.70% |
| Apr 1, 1983 | 63.80% |
| Mar 1, 1983 | 63.70% |
| Feb 1, 1983 | 63.80% |
| Jan 1, 1983 | 63.90% |
| Dec 1, 1982 | 64.10% |
| Nov 1, 1982 | 64.20% |
| Oct 1, 1982 | 64.10% |
| Sep 1, 1982 | 64.10% |
| Aug 1, 1982 | 64.10% |
| Jul 1, 1982 | 64.00% |
| Jun 1, 1982 | 63.90% |
| May 1, 1982 | 64.20% |
| Apr 1, 1982 | 63.90% |
| Mar 1, 1982 | 63.80% |
| Feb 1, 1982 | 63.80% |
| Jan 1, 1982 | 63.70% |
| Dec 1, 1981 | 63.60% |
| Nov 1, 1981 | 63.90% |
| Oct 1, 1981 | 63.80% |
| Sep 1, 1981 | 63.50% |
| Aug 1, 1981 | 63.80% |
| Jul 1, 1981 | 63.80% |
| Jun 1, 1981 | 63.70% |
| May 1, 1981 | 64.30% |
| Apr 1, 1981 | 64.20% |
| Mar 1, 1981 | 64.10% |
| Feb 1, 1981 | 63.90% |
| Jan 1, 1981 | 63.90% |
| Dec 1, 1980 | 63.60% |
| Nov 1, 1980 | 63.80% |
| Oct 1, 1980 | 63.70% |
| Sep 1, 1980 | 63.60% |
| Aug 1, 1980 | 63.70% |
| Jul 1, 1980 | 63.80% |
| Jun 1, 1980 | 63.70% |
| May 1, 1980 | 63.90% |
| Apr 1, 1980 | 63.80% |
| Mar 1, 1980 | 63.70% |
| Feb 1, 1980 | 64.00% |
| Jan 1, 1980 | 64.00% |
| Dec 1, 1979 | 63.90% |
| Nov 1, 1979 | 63.70% |
| Oct 1, 1979 | 63.70% |
| Sep 1, 1979 | 63.80% |
| Aug 1, 1979 | 63.60% |
| Jul 1, 1979 | 63.60% |
| Jun 1, 1979 | 63.50% |
| May 1, 1979 | 63.30% |
| Apr 1, 1979 | 63.50% |
| Mar 1, 1979 | 63.80% |
| Feb 1, 1979 | 63.80% |
| Jan 1, 1979 | 63.60% |
| Dec 1, 1978 | 63.60% |
| Nov 1, 1978 | 63.50% |
| Oct 1, 1978 | 63.30% |
| Sep 1, 1978 | 63.30% |
| Aug 1, 1978 | 63.20% |
| Jul 1, 1978 | 63.20% |
| Jun 1, 1978 | 63.30% |
| May 1, 1978 | 63.10% |
| Apr 1, 1978 | 63.00% |
| Mar 1, 1978 | 62.80% |
| Feb 1, 1978 | 62.70% |
| Jan 1, 1978 | 62.80% |
| Dec 1, 1977 | 62.70% |
| Nov 1, 1977 | 62.80% |
| Oct 1, 1977 | 62.40% |
| Sep 1, 1977 | 62.30% |
| Aug 1, 1977 | 62.30% |
| Jul 1, 1977 | 62.10% |
| Jun 1, 1977 | 62.40% |
| May 1, 1977 | 62.20% |
| Apr 1, 1977 | 62.10% |
| Mar 1, 1977 | 62.00% |
| Feb 1, 1977 | 61.90% |
| Jan 1, 1977 | 61.60% |
| Dec 1, 1976 | 61.80% |
| Nov 1, 1976 | 61.90% |
| Oct 1, 1976 | 61.60% |
| Sep 1, 1976 | 61.60% |
| Aug 1, 1976 | 61.80% |
| Jul 1, 1976 | 61.80% |
| Jun 1, 1976 | 61.50% |
| May 1, 1976 | 61.50% |
| Apr 1, 1976 | 61.60% |
| Mar 1, 1976 | 61.30% |
| Feb 1, 1976 | 61.30% |
| Jan 1, 1976 | 61.30% |
| Dec 1, 1975 | 61.10% |
| Nov 1, 1975 | 61.10% |
| Oct 1, 1975 | 61.20% |
| Sep 1, 1975 | 61.20% |
| Aug 1, 1975 | 61.30% |
| Jul 1, 1975 | 61.30% |
| Jun 1, 1975 | 61.20% |
| May 1, 1975 | 61.50% |
| Apr 1, 1975 | 61.30% |
| Mar 1, 1975 | 61.20% |
| Feb 1, 1975 | 61.00% |
| Jan 1, 1975 | 61.40% |
| Dec 1, 1974 | 61.20% |
| Nov 1, 1974 | 61.30% |
| Oct 1, 1974 | 61.30% |
| Sep 1, 1974 | 61.40% |
| Aug 1, 1974 | 61.20% |
| Jul 1, 1974 | 61.40% |
| Jun 1, 1974 | 61.20% |
| May 1, 1974 | 61.20% |
| Apr 1, 1974 | 61.10% |
| Mar 1, 1974 | 61.30% |
| Feb 1, 1974 | 61.40% |
| Jan 1, 1974 | 61.30% |
| Dec 1, 1973 | 61.20% |
| Nov 1, 1973 | 61.20% |
| Oct 1, 1973 | 60.90% |
| Sep 1, 1973 | 60.80% |
| Aug 1, 1973 | 60.70% |
| Jul 1, 1973 | 60.90% |
| Jun 1, 1973 | 60.90% |
| May 1, 1973 | 60.60% |
| Apr 1, 1973 | 60.80% |
| Mar 1, 1973 | 60.80% |
| Feb 1, 1973 | 60.50% |
| Jan 1, 1973 | 60.00% |
| Dec 1, 1972 | 60.50% |
| Nov 1, 1972 | 60.30% |
| Oct 1, 1972 | 60.30% |
| Sep 1, 1972 | 60.40% |
| Aug 1, 1972 | 60.60% |
| Jul 1, 1972 | 60.40% |
| Jun 1, 1972 | 60.40% |
| May 1, 1972 | 60.40% |
| Apr 1, 1972 | 60.40% |
| Mar 1, 1972 | 60.50% |
| Feb 1, 1972 | 60.20% |
| Jan 1, 1972 | 60.20% |
| Dec 1, 1971 | 60.40% |
| Nov 1, 1971 | 60.40% |
| Oct 1, 1971 | 60.10% |
| Sep 1, 1971 | 60.10% |
| Aug 1, 1971 | 60.20% |
| Jul 1, 1971 | 60.10% |
| Jun 1, 1971 | 59.80% |
| May 1, 1971 | 60.20% |
| Apr 1, 1971 | 60.10% |
| Mar 1, 1971 | 60.00% |
| Feb 1, 1971 | 60.10% |
| Jan 1, 1971 | 60.40% |
| Dec 1, 1970 | 60.40% |
| Nov 1, 1970 | 60.40% |
| Oct 1, 1970 | 60.40% |
| Sep 1, 1970 | 60.20% |
| Aug 1, 1970 | 60.30% |
| Jul 1, 1970 | 60.40% |
| Jun 1, 1970 | 60.20% |
| May 1, 1970 | 60.30% |
| Apr 1, 1970 | 60.60% |
| Mar 1, 1970 | 60.60% |
| Feb 1, 1970 | 60.40% |
| Jan 1, 1970 | 60.40% |
| Dec 1, 1969 | 60.20% |
| Nov 1, 1969 | 60.20% |
| Oct 1, 1969 | 60.40% |
| Sep 1, 1969 | 60.30% |
| Aug 1, 1969 | 60.30% |
| Jul 1, 1969 | 60.10% |
| Jun 1, 1969 | 60.10% |
| May 1, 1969 | 59.80% |
| Apr 1, 1969 | 60.00% |
| Mar 1, 1969 | 59.90% |
| Feb 1, 1969 | 60.00% |
| Jan 1, 1969 | 59.60% |
| Dec 1, 1968 | 59.70% |
| Nov 1, 1968 | 59.60% |
| Oct 1, 1968 | 59.50% |
| Sep 1, 1968 | 59.50% |
| Aug 1, 1968 | 59.60% |
| Jul 1, 1968 | 59.80% |
| Jun 1, 1968 | 60.00% |
| May 1, 1968 | 59.90% |
| Apr 1, 1968 | 59.50% |
| Mar 1, 1968 | 59.60% |
| Feb 1, 1968 | 59.60% |
| Jan 1, 1968 | 59.20% |
| Dec 1, 1967 | 59.90% |
| Nov 1, 1967 | 59.80% |
| Oct 1, 1967 | 59.90% |
| Sep 1, 1967 | 59.70% |
| Aug 1, 1967 | 59.70% |
| Jul 1, 1967 | 59.60% |
| Jun 1, 1967 | 59.60% |
| May 1, 1967 | 59.30% |
| Apr 1, 1967 | 59.40% |
| Mar 1, 1967 | 59.10% |
| Feb 1, 1967 | 59.30% |
| Jan 1, 1967 | 59.50% |
| Dec 1, 1966 | 59.50% |
| Nov 1, 1966 | 59.60% |
| Oct 1, 1966 | 59.30% |
| Sep 1, 1966 | 59.30% |
| Aug 1, 1966 | 59.30% |
| Jul 1, 1966 | 59.10% |
| Jun 1, 1966 | 59.10% |
| May 1, 1966 | 59.00% |
| Apr 1, 1966 | 59.00% |
| Mar 1, 1966 | 58.80% |
| Feb 1, 1966 | 58.80% |
| Jan 1, 1966 | 59.00% |
| Dec 1, 1965 | 59.00% |
| Nov 1, 1965 | 58.80% |
| Oct 1, 1965 | 58.90% |
| Sep 1, 1965 | 58.70% |
| Aug 1, 1965 | 58.90% |
| Jul 1, 1965 | 59.10% |
| Jun 1, 1965 | 58.80% |
| May 1, 1965 | 59.00% |
| Apr 1, 1965 | 58.80% |
| Mar 1, 1965 | 58.70% |
| Feb 1, 1965 | 58.70% |
| Jan 1, 1965 | 58.60% |
| Dec 1, 1964 | 58.60% |
| Nov 1, 1964 | 58.50% |
| Oct 1, 1964 | 58.60% |
| Sep 1, 1964 | 58.70% |
| Aug 1, 1964 | 58.60% |
| Jul 1, 1964 | 58.60% |
| Jun 1, 1964 | 58.70% |
| May 1, 1964 | 59.10% |
| Apr 1, 1964 | 59.10% |
| Mar 1, 1964 | 58.70% |
| Feb 1, 1964 | 58.80% |
| Jan 1, 1964 | 58.60% |
| Dec 1, 1963 | 58.50% |
| Nov 1, 1963 | 58.80% |
| Oct 1, 1963 | 58.80% |
| Sep 1, 1963 | 58.70% |
| Aug 1, 1963 | 58.50% |
| Jul 1, 1963 | 58.70% |
| Jun 1, 1963 | 58.50% |
| May 1, 1963 | 58.80% |
| Apr 1, 1963 | 58.80% |
| Mar 1, 1963 | 58.60% |
| Feb 1, 1963 | 58.60% |
| Jan 1, 1963 | 58.60% |
| Dec 1, 1962 | 58.40% |
| Nov 1, 1962 | 58.50% |
| Oct 1, 1962 | 58.70% |
| Sep 1, 1962 | 59.00% |
| Aug 1, 1962 | 59.00% |
| Jul 1, 1962 | 58.50% |
| Jun 1, 1962 | 58.80% |
| May 1, 1962 | 58.90% |
| Apr 1, 1962 | 58.70% |
| Mar 1, 1962 | 58.90% |
| Feb 1, 1962 | 59.00% |
| Jan 1, 1962 | 58.80% |
| Dec 1, 1961 | 58.80% |
| Nov 1, 1961 | 59.10% |
| Oct 1, 1961 | 59.10% |
| Sep 1, 1961 | 59.00% |
| Aug 1, 1961 | 59.30% |
| Jul 1, 1961 | 59.30% |
| Jun 1, 1961 | 59.70% |
| May 1, 1961 | 59.40% |
| Apr 1, 1961 | 59.30% |
| Mar 1, 1961 | 59.70% |
| Feb 1, 1961 | 59.60% |
| Jan 1, 1961 | 59.60% |
| Dec 1, 1960 | 59.70% |
| Nov 1, 1960 | 59.80% |
| Oct 1, 1960 | 59.40% |
| Sep 1, 1960 | 59.70% |
| Aug 1, 1960 | 59.50% |
| Jul 1, 1960 | 59.50% |
| Jun 1, 1960 | 59.70% |
| May 1, 1960 | 59.50% |
| Apr 1, 1960 | 59.50% |
| Mar 1, 1960 | 58.50% |
| Feb 1, 1960 | 59.10% |
| Jan 1, 1960 | 59.10% |
| Dec 1, 1959 | 59.50% |
| Nov 1, 1959 | 59.10% |
| Oct 1, 1959 | 59.40% |
| Sep 1, 1959 | 59.30% |
| Aug 1, 1959 | 59.20% |
| Jul 1, 1959 | 59.40% |
| Jun 1, 1959 | 59.20% |
| May 1, 1959 | 59.20% |
| Apr 1, 1959 | 59.40% |
| Mar 1, 1959 | 59.30% |
| Feb 1, 1959 | 59.00% |
| Jan 1, 1959 | 59.30% |
| Dec 1, 1958 | 59.20% |
| Nov 1, 1958 | 59.20% |
| Oct 1, 1958 | 59.60% |
| Sep 1, 1958 | 59.70% |
| Aug 1, 1958 | 59.80% |
| Jul 1, 1958 | 59.60% |
| Jun 1, 1958 | 59.50% |
| May 1, 1958 | 59.80% |
| Apr 1, 1958 | 59.60% |
| Mar 1, 1958 | 59.30% |
| Feb 1, 1958 | 59.30% |
| Jan 1, 1958 | 59.30% |
| Dec 1, 1957 | 59.60% |
| Nov 1, 1957 | 59.50% |
| Oct 1, 1957 | 59.50% |
| Sep 1, 1957 | 59.60% |
| Aug 1, 1957 | 59.30% |
| Jul 1, 1957 | 60.00% |
| Jun 1, 1957 | 59.80% |
| May 1, 1957 | 59.50% |
| Apr 1, 1957 | 59.50% |
| Mar 1, 1957 | 59.80% |
| Feb 1, 1957 | 59.90% |
| Jan 1, 1957 | 59.50% |
| Dec 1, 1956 | 59.80% |
| Nov 1, 1956 | 59.80% |
| Oct 1, 1956 | 59.80% |
| Sep 1, 1956 | 60.00% |
| Aug 1, 1956 | 60.00% |
| Jul 1, 1956 | 60.10% |
| Jun 1, 1956 | 60.10% |
| May 1, 1956 | 60.20% |
| Apr 1, 1956 | 59.90% |
| Mar 1, 1956 | 59.80% |
| Feb 1, 1956 | 59.90% |
| Jan 1, 1956 | 60.20% |
| Dec 1, 1955 | 60.20% |
| Nov 1, 1955 | 59.90% |
| Oct 1, 1955 | 59.80% |
| Sep 1, 1955 | 59.70% |
| Aug 1, 1955 | 59.70% |
| Jul 1, 1955 | 59.30% |
| Jun 1, 1955 | 58.80% |
| May 1, 1955 | 58.80% |
| Apr 1, 1955 | 59.00% |
| Mar 1, 1955 | 58.50% |
| Feb 1, 1955 | 58.40% |
| Jan 1, 1955 | 58.60% |
| Dec 1, 1954 | 58.10% |
| Nov 1, 1954 | 58.60% |
| Oct 1, 1954 | 58.80% |
| Sep 1, 1954 | 59.20% |
| Aug 1, 1954 | 58.70% |
| Jul 1, 1954 | 58.40% |
| Jun 1, 1954 | 58.50% |
| May 1, 1954 | 58.90% |
| Apr 1, 1954 | 59.20% |
| Mar 1, 1954 | 59.10% |
| Feb 1, 1954 | 59.30% |
| Jan 1, 1954 | 58.60% |
| Dec 1, 1953 | 58.30% |
| Nov 1, 1953 | 58.60% |
| Oct 1, 1953 | 58.50% |
| Sep 1, 1953 | 58.50% |
| Aug 1, 1953 | 58.60% |
| Jul 1, 1953 | 58.90% |
| Jun 1, 1953 | 58.90% |
| May 1, 1953 | 58.60% |
| Apr 1, 1953 | 59.10% |
| Mar 1, 1953 | 59.60% |
| Feb 1, 1953 | 59.50% |
| Jan 1, 1953 | 59.50% |
| Dec 1, 1952 | 59.20% |
| Nov 1, 1952 | 59.10% |
| Oct 1, 1952 | 58.70% |
| Sep 1, 1952 | 59.20% |
| Aug 1, 1952 | 58.70% |
| Jul 1, 1952 | 58.90% |
| Jun 1, 1952 | 59.10% |
| May 1, 1952 | 59.10% |
| Apr 1, 1952 | 58.80% |
| Mar 1, 1952 | 58.90% |
| Feb 1, 1952 | 59.50% |
| Jan 1, 1952 | 59.50% |
| Dec 1, 1951 | 59.60% |
| Nov 1, 1951 | 59.20% |
| Oct 1, 1951 | 59.40% |
| Sep 1, 1951 | 59.10% |
| Aug 1, 1951 | 59.20% |
| Jul 1, 1951 | 59.40% |
| Jun 1, 1951 | 59.00% |
| May 1, 1951 | 59.40% |
| Apr 1, 1951 | 59.10% |
| Mar 1, 1951 | 59.80% |
| Feb 1, 1951 | 59.10% |
| Jan 1, 1951 | 59.10% |
| Dec 1, 1950 | 59.20% |
| Nov 1, 1950 | 59.30% |
| Oct 1, 1950 | 59.40% |
| Sep 1, 1950 | 59.20% |
| Aug 1, 1950 | 59.50% |
| Jul 1, 1950 | 59.10% |
| Jun 1, 1950 | 59.40% |
| May 1, 1950 | 59.10% |
| Apr 1, 1950 | 59.20% |
| Mar 1, 1950 | 58.80% |
| Feb 1, 1950 | 58.90% |
| Jan 1, 1950 | 58.90% |
| Dec 1, 1949 | 59.20% |
| Nov 1, 1949 | 59.40% |
| Oct 1, 1949 | 59.60% |
| Sep 1, 1949 | 59.10% |
| Aug 1, 1949 | 59.20% |
| Jul 1, 1949 | 58.90% |
| Jun 1, 1949 | 58.60% |
| May 1, 1949 | 59.00% |
| Apr 1, 1949 | 58.80% |
| Mar 1, 1949 | 58.90% |
| Feb 1, 1949 | 59.00% |
| Jan 1, 1949 | 58.70% |
| Dec 1, 1948 | 59.10% |
| Nov 1, 1948 | 58.70% |
| Oct 1, 1948 | 58.70% |
| Sep 1, 1948 | 58.90% |
| Aug 1, 1948 | 58.90% |
| Jul 1, 1948 | 59.30% |
| Jun 1, 1948 | 59.20% |
| May 1, 1948 | 58.30% |
| Apr 1, 1948 | 59.00% |
| Mar 1, 1948 | 58.50% |
| Feb 1, 1948 | 58.90% |
| Jan 1, 1948 | 58.60% |
The US Labor Force Participation Rate is the percentage of the US working-age population (age 16 and over) that is in the work force.
This includes both those who are employed, and unemployed but looking for work.
Source: US Bureau of Labor Statistics — here.