Date Value Value
Dec 7, 2016 0.52%
Dec 1, 2016 0.49%
Nov 1, 2016 0.45%
Oct 1, 2016 0.33%
Sep 1, 2016 0.29%
Aug 1, 2016 0.30%
Jul 1, 2016 0.30%
Jun 1, 2016 0.27%
May 1, 2016 0.28%
Apr 1, 2016 0.23%
Mar 1, 2016 0.30%
Feb 1, 2016 0.31%
Jan 1, 2016 0.26%
Dec 1, 2015 0.23%
Nov 1, 2015 0.13%
Oct 1, 2015 0.02%
Sep 1, 2015 0.02%
Aug 1, 2015 0.07%
Jul 1, 2015 0.03%
Jun 1, 2015 0.02%
May 1, 2015 0.02%
Apr 1, 2015 0.02%
Mar 1, 2015 0.03%
Feb 1, 2015 0.02%
Jan 1, 2015 0.03%
Dec 1, 2014 0.03%
Nov 1, 2014 0.02%
Oct 1, 2014 0.02%
Sep 1, 2014 0.02%
Aug 1, 2014 0.03%
Jul 1, 2014 0.03%
Jun 1, 2014 0.04%
May 1, 2014 0.03%
Apr 1, 2014 0.03%
Mar 1, 2014 0.05%
Feb 1, 2014 0.05%
Jan 1, 2014 0.04%
Dec 1, 2013 0.07%
Nov 1, 2013 0.07%
Oct 1, 2013 0.05%
Sep 1, 2013 0.02%
Aug 1, 2013 0.04%
Jul 1, 2013 0.04%
Jun 1, 2013 0.05%
May 1, 2013 0.04%
Apr 1, 2013 0.06%
Mar 1, 2013 0.09%
Feb 1, 2013 0.10%
Jan 1, 2013 0.07%
Dec 1, 2012 0.07%
Nov 1, 2012 0.09%
Oct 1, 2012 0.10%
Sep 1, 2012 0.11%
Aug 1, 2012 0.10%
Jul 1, 2012 0.10%
Jun 1, 2012 0.09%
May 1, 2012 0.09%
Apr 1, 2012 0.08%
Mar 1, 2012 0.08%
Feb 1, 2012 0.09%
Jan 1, 2012 0.03%
Dec 1, 2011 0.01%
Nov 1, 2011 0.01%
Oct 1, 2011 0.02%
Sep 1, 2011 0.01%
Aug 1, 2011 0.02%
Jul 1, 2011 0.04%
Jun 1, 2011 0.04%
May 1, 2011 0.04%
Apr 1, 2011 0.06%
Mar 1, 2011 0.10%
Feb 1, 2011 0.13%
Jan 1, 2011 0.15%
Dec 1, 2010 0.14%
Nov 1, 2010 0.14%
Oct 1, 2010 0.13%
Sep 1, 2010 0.15%
Aug 1, 2010 0.16%
Jul 1, 2010 0.16%
Jun 1, 2010 0.12%
May 1, 2010 0.16%
Apr 1, 2010 0.16%
Mar 1, 2010 0.15%
Feb 1, 2010 0.11%
Jan 1, 2010 0.06%
Dec 1, 2009 0.05%
Nov 1, 2009 0.05%
Oct 1, 2009 0.07%
Sep 1, 2009 0.12%
Aug 1, 2009 0.17%
Jul 1, 2009 0.18%
Jun 1, 2009 0.18%
May 1, 2009 0.18%
Apr 1, 2009 0.16%
Mar 1, 2009 0.22%
Feb 1, 2009 0.30%
Jan 1, 2009 0.13%
Dec 1, 2008 0.04%
Nov 1, 2008 0.19%
Oct 1, 2008 0.69%
Sep 1, 2008 1.15%
Aug 1, 2008 1.75%
Jul 1, 2008 1.66%
Jun 1, 2008 1.89%
May 1, 2008 1.76%
Apr 1, 2008 1.31%
Mar 1, 2008 1.28%
Feb 1, 2008 2.17%
Jan 1, 2008 2.82%
Dec 1, 2007 3.07%
Nov 1, 2007 3.35%
Oct 1, 2007 4.00%
Sep 1, 2007 3.99%
Aug 1, 2007 4.32%
Jul 1, 2007 4.96%
Jun 1, 2007 4.74%
May 1, 2007 4.87%
Apr 1, 2007 5.01%
Mar 1, 2007 5.08%
Feb 1, 2007 5.16%
Jan 1, 2007 5.11%
Dec 1, 2006 4.97%
Nov 1, 2006 5.07%
Oct 1, 2006 5.05%
Sep 1, 2006 4.93%
Aug 1, 2006 5.09%
Jul 1, 2006 5.08%
Jun 1, 2006 4.92%
May 1, 2006 4.84%
Apr 1, 2006 4.72%
Mar 1, 2006 4.63%
Feb 1, 2006 4.54%
Jan 1, 2006 4.34%
Dec 1, 2005 3.97%
Nov 1, 2005 3.97%
Oct 1, 2005 3.79%
Sep 1, 2005 3.49%
Aug 1, 2005 3.52%
Jul 1, 2005 3.29%
Jun 1, 2005 3.04%
May 1, 2005 2.90%
Apr 1, 2005 2.84%
Mar 1, 2005 2.80%
Feb 1, 2005 2.58%
Jan 1, 2005 2.37%
Dec 1, 2004 2.22%
Nov 1, 2004 2.11%
Oct 1, 2004 1.79%
Sep 1, 2004 1.68%
Aug 1, 2004 1.50%
Jul 1, 2004 1.36%
Jun 1, 2004 1.29%
May 1, 2004 1.04%
Apr 1, 2004 0.96%
Mar 1, 2004 0.95%
Feb 1, 2004 0.94%
Jan 1, 2004 0.90%
Dec 1, 2003 0.91%
Nov 1, 2003 0.95%
Oct 1, 2003 0.94%
Sep 1, 2003 0.96%
Aug 1, 2003 0.97%
Jul 1, 2003 0.92%
Jun 1, 2003 0.94%
May 1, 2003 1.09%
Apr 1, 2003 1.15%
Mar 1, 2003 1.15%
Feb 1, 2003 1.19%
Jan 1, 2003 1.19%
Dec 1, 2002 1.21%
Nov 1, 2002 1.25%
Oct 1, 2002 1.61%
Sep 1, 2002 1.66%
Aug 1, 2002 1.65%
Jul 1, 2002 1.71%
Jun 1, 2002 1.73%
May 1, 2002 1.76%
Apr 1, 2002 1.75%
Mar 1, 2002 1.82%
Feb 1, 2002 1.76%
Jan 1, 2002 1.68%
Dec 1, 2001 1.72%
Nov 1, 2001 1.91%
Oct 1, 2001 2.20%
Sep 1, 2001 2.69%
Aug 1, 2001 3.44%
Jul 1, 2001 3.59%
Jun 1, 2001 3.57%
May 1, 2001 3.70%
Apr 1, 2001 3.97%
Mar 1, 2001 4.54%
Feb 1, 2001 5.01%
Jan 1, 2001 5.29%
Dec 1, 2000 5.94%
Nov 1, 2000 6.36%
Oct 1, 2000 6.29%
Sep 1, 2000 6.17%
Aug 1, 2000 6.28%
Jul 1, 2000 6.14%
Jun 1, 2000 5.86%
May 1, 2000 5.99%
Apr 1, 2000 5.82%
Mar 1, 2000 5.86%
Feb 1, 2000 5.73%
Jan 1, 2000 5.50%
Dec 1, 1999 5.36%
Nov 1, 1999 5.23%
Oct 1, 1999 5.02%
Sep 1, 1999 4.82%
Aug 1, 1999 4.87%
Jul 1, 1999 4.69%
Jun 1, 1999 4.72%
May 1, 1999 4.63%
Apr 1, 1999 4.41%
Mar 1, 1999 4.57%
Feb 1, 1999 4.56%
Jan 1, 1999 4.45%
Dec 1, 1998 4.50%
Nov 1, 1998 4.53%
Oct 1, 1998 4.07%
Sep 1, 1998 4.74%
Aug 1, 1998 5.04%
Jul 1, 1998 5.09%
Jun 1, 1998 5.12%
May 1, 1998 5.14%
Apr 1, 1998 5.08%
Mar 1, 1998 5.16%
Feb 1, 1998 5.23%
Jan 1, 1998 5.18%
Dec 1, 1997 5.30%
Nov 1, 1997 5.28%
Oct 1, 1997 5.11%
Sep 1, 1997 5.08%
Aug 1, 1997 5.28%
Jul 1, 1997 5.19%
Jun 1, 1997 5.07%
May 1, 1997 5.20%
Apr 1, 1997 5.30%
Mar 1, 1997 5.28%
Feb 1, 1997 5.14%
Jan 1, 1997 5.17%
Dec 1, 1996 5.04%
Nov 1, 1996 5.17%
Oct 1, 1996 5.12%
Sep 1, 1996 5.24%
Aug 1, 1996 5.19%
Jul 1, 1996 5.30%
Jun 1, 1996 5.23%
May 1, 1996 5.15%
Apr 1, 1996 5.09%
Mar 1, 1996 5.10%
Feb 1, 1996 4.96%
Jan 1, 1996 5.15%
Dec 1, 1995 5.29%
Nov 1, 1995 5.52%
Oct 1, 1995 5.44%
Sep 1, 1995 5.43%
Aug 1, 1995 5.57%
Jul 1, 1995 5.59%
Jun 1, 1995 5.64%
May 1, 1995 5.85%
Apr 1, 1995 5.84%
Mar 1, 1995 5.91%
Feb 1, 1995 5.94%
Jan 1, 1995 5.90%
Dec 1, 1994 5.76%
Nov 1, 1994 5.45%
Oct 1, 1994 5.10%
Sep 1, 1994 4.75%
Aug 1, 1994 4.61%
Jul 1, 1994 4.46%
Jun 1, 1994 4.25%
May 1, 1994 4.27%
Apr 1, 1994 3.78%
Mar 1, 1994 3.59%
Feb 1, 1994 3.33%
Jan 1, 1994 3.04%
Dec 1, 1993 3.13%
Nov 1, 1993 3.18%
Oct 1, 1993 3.09%
Sep 1, 1993 3.01%
Aug 1, 1993 3.09%
Jul 1, 1993 3.11%
Jun 1, 1993 3.14%
May 1, 1993 3.03%
Apr 1, 1993 2.93%
Mar 1, 1993 3.01%
Feb 1, 1993 2.99%
Jan 1, 1993 3.07%
Dec 1, 1992 3.29%
Nov 1, 1992 3.21%
Oct 1, 1992 2.93%
Sep 1, 1992 2.97%
Aug 1, 1992 3.20%
Jul 1, 1992 3.28%
Jun 1, 1992 3.75%
May 1, 1992 3.72%
Apr 1, 1992 3.84%
Mar 1, 1992 4.14%
Feb 1, 1992 3.95%
Jan 1, 1992 3.91%
Dec 1, 1991 4.18%
Nov 1, 1991 4.69%
Oct 1, 1991 5.14%
Sep 1, 1991 5.37%
Aug 1, 1991 5.50%
Jul 1, 1991 5.75%
Jun 1, 1991 5.75%
May 1, 1991 5.63%
Apr 1, 1991 5.83%
Mar 1, 1991 6.09%
Feb 1, 1991 6.12%
Jan 1, 1991 6.41%
Dec 1, 1990 6.95%
Nov 1, 1990 7.29%
Oct 1, 1990 7.40%
Sep 1, 1990 7.60%
Aug 1, 1990 7.69%
Jul 1, 1990 7.87%
Jun 1, 1990 7.99%
May 1, 1990 8.01%
Apr 1, 1990 8.04%
Mar 1, 1990 8.17%
Feb 1, 1990 8.00%
Jan 1, 1990 7.90%