Month Percent 1993-06-30 3.9 1993-07-31 5.3 1993-08-31 9.9 1993-09-30 10.8 1993-10-31 10.6 1993-11-30 7.7 1993-12-31 4 1994-01-31 8.5 1994-02-28 6.3 1994-03-31 9.2 1994-04-30 8.4 1994-05-31 12.4 1994-06-30 10.3 1994-07-31 8.7 1994-08-31 11.2 1994-09-30 14.6 1994-10-31 16.5 1994-11-30 11.5 1994-12-31 9.4 1995-01-31 11.7 1995-02-28 11.9 1995-03-31 14.2 1995-04-30 10.8 1995-05-31 11.2 1995-06-30 9.9 1995-07-31 11.9 1995-08-31 15.9 1995-09-30 17.7 1995-10-31 18.7 1995-11-30 15.3 1995-12-31 12.9 1996-01-31 12.8 1996-02-29 12.6 1996-03-31 13.8 1996-04-30 16 1996-05-31 16.2 1996-06-30 14.2 1996-07-31 13.1 1996-08-31 16.9 1996-09-30 24.4 1996-10-31 22.1 1996-11-30 18.4 1996-12-31 12.7 1997-01-31 15.2 1997-02-28 17 1997-03-31 15.9 1997-04-30 15.6 1997-05-31 14.6 1997-06-30 17.5 1997-07-31 11.9 1997-08-31 13.2 1997-09-30 12 1997-10-31 13.7 1997-11-30 13.4 1997-12-31 13.8 1998-01-31 19.5 1998-02-28 18.6 1998-03-31 19.6 1998-04-30 14.6 1998-05-31 15.6 1998-06-30 13.6 1998-07-31 13.4 1998-08-31 13.6 1998-09-30 16.2 1998-10-31 16.9 1998-11-30 15.7 1998-12-31 9.6 1999-01-31 12 1999-02-28 10.9 1999-03-31 16.2 1999-04-30 15.1 1999-05-31 14.9 1999-06-30 13.2 1999-07-31 11.4 1999-08-31 13.4 1999-09-30 14.2 1999-10-31 14.3 1999-11-30 15.2 1999-12-31 9.4 2000-01-31 14.2 2000-02-29 10.5 2000-03-31 15.9 2000-04-30 12.7 2000-05-31 13.1 2000-06-30 10.1 2000-07-31 8.6 2000-08-31 6.4 2000-09-30 8.3 2000-10-31 10 2000-11-30 12.8 2000-12-31 7.9 2001-01-31 10.5 2001-02-28 8.4 2001-03-31 14 2001-04-30 13.5 2001-05-31 16 2001-06-30 14.7 2001-07-31 12.8 2001-08-31 11.7 2001-09-30 13.7 2001-10-31 15.1 2001-11-30 16.2 2001-12-31 13.8 2002-01-31 15.6 2002-02-28 14.4 2002-03-31 17.2 2002-04-30 16 2002-05-31 18 2002-06-30 13.8 2002-07-31 12.9 2002-08-31 11.5 2002-09-30 16.4 2002-10-31 17.3 2002-11-30 15.8 2002-12-31 12.2 2003-01-31 10.8 2003-02-28 10.4 2003-03-31 13.8 2003-04-30 12.4 2003-05-31 14.3 2003-06-30 12.2 2003-07-31 12.1 2003-08-31 10.1 2003-09-30 11.4 2003-10-31 10.9 2003-11-30 13.4 2003-12-31 8.2 2004-01-31 11.9 2004-02-29 10.9 2004-03-31 15.4 2004-04-30 11.5 2004-05-31 12.8 2004-06-30 12.7 2004-07-31 11.9 2004-08-31 11.2 2004-09-30 11.5 2004-10-31 11.5 2004-11-30 11.6 2004-12-31 8 2005-01-31 12.5 2005-02-28 10.1 2005-03-31 14.1 2005-04-30 10.5 2005-05-31 12.5 2005-06-30 11.1 2005-07-31 9 2005-08-31 8.6 2005-09-30 8.8 2005-10-31 10.3 2005-11-30 8 2005-12-31 4.9 2006-01-31 8 2006-02-28 8.5 2006-03-31 9.5 2006-04-30 5.4 2006-05-31 7.5 2006-06-30 7.6 2006-07-31 8.3 2006-08-31 6.7 2006-09-30 7.6 2006-10-31 8.6 2006-11-30 8.3 2006-12-31 5.3 2007-01-31 6.6 2007-02-28 6 2007-03-31 7.3 2007-04-30 6.6 2007-05-31 8.8 2007-06-30 8.6 2007-07-31 7.4 2007-08-31 5.2 2007-09-30 8 2007-10-31 10.1 2007-11-30 9.9 2007-12-31 4.9 2008-01-31 3.3 2008-02-29 5.9 2008-03-31 9.4 2008-04-30 8.5 2008-05-31 7.4 2008-06-30 6.3 2008-07-31 4.7 2008-08-31 1.9 2008-09-30 2.1 2008-10-31 1.9 2008-11-30 2 2008-12-31 -0.1 2009-01-31 0.8 2009-02-28 3.3 2009-03-31 4.3 2009-04-30 3.1 2009-05-31 2.3 2009-06-30 2.3 2009-07-31 0.5 2009-08-31 -5 2009-09-30 -3.9 2009-10-31 -3.7 2009-11-30 -0.1 2009-12-31 -2.6 2010-01-31 -0.1 2010-02-28 0.7 2010-03-31 2.3 2010-04-30 0.8 2010-05-31 2.7 2010-06-30 1.8 2010-07-31 0.6 2010-08-31 -3.4 2010-09-30 -2.6 2010-10-31 -1.3 2010-11-30 0.2 2010-12-31 0.2 2011-01-31 0.7 2011-02-28 3.1 2011-03-31 3.3 2011-04-30 3.4 2011-05-31 5.3 2011-06-30 4.5 2011-07-31 2.4 2011-08-31 -1.1 2011-09-30 0.7 2011-10-31 2.7 2011-11-30 2.7 2011-12-31 -1.4 2012-01-31 0.3 2012-02-29 2.1 2012-03-31 5.8 2012-04-30 6 2012-05-31 8.4 2012-06-30 6.7 2012-07-31 4.6 2012-08-31 -1.3 2012-09-30 3.4 2012-10-31 6.7 2012-11-30 7.9 2012-12-31 5.9 2013-01-31 5.8 2013-02-28 9 2013-03-31 8.7 2013-04-30 9 2013-05-31 13.1 2013-06-30 10.4 2013-07-31 8.3 2013-08-31 1.8 2013-09-30 8.2 2013-10-31 11 2013-11-30 10.8 2013-12-31 6.7 2014-01-31 5.7 2014-02-28 9.9 2014-03-31 12.9 2014-04-30 12.3 2014-05-31 18.6 2014-06-30 14.5 2014-07-31 13.6 2014-08-31 4 2014-09-30 9.7 2014-10-31 13.3 2014-11-30 14.8 2014-12-31 8.6 2015-01-31 6.8 2015-02-28 9.8 2015-03-31 15.3 2015-04-30 14.9 2015-05-31 20.6 2015-06-30 16.3 2015-07-31 14.8 2015-08-31 5.9 2015-09-30 10.3 2015-10-31 14.5 2015-11-30 16.2 2015-12-31 10.2 2016-01-31 8.6 2016-02-29 12.4 2016-03-31 16.8 2016-04-30 15.7 2016-05-31 21.2 2016-06-30 17.9 2016-07-31 15.7 2016-08-31 5.9 2016-09-30 10.1 2016-10-31 15.4 2016-11-30 16.7 2016-12-31 10 2017-01-31 8.6 2017-02-28 10.3 2017-03-31 15.6 2017-04-30 13.3 2017-05-31 21.1 2017-06-30 17 2017-07-31 15.9 2017-08-31 5.9 2017-09-30 10.4 2017-10-31 15.5 2017-11-30 15.3 2017-12-31 9.9 2018-01-31 7.5 2018-02-28 10.5 2018-03-31 13 2018-04-30 13.7 2018-05-31 19.6 2018-06-30 17.5 2018-07-31 13.8 2018-08-31 4.6 2018-09-30 8.4 2018-10-31 12.5 2018-11-30 12.7 2018-12-31 8 2019-01-31 7 2019-02-28 10.1 2019-03-31 12.5 2019-04-30 11.9 2019-05-31 16.6 2019-06-30 15 2019-07-31 12.3 2019-08-31 4.1 2019-09-30 8.1 2019-10-31 11.7 2019-11-30 11.9 2019-12-31 7.3 2020-01-31 6.3 2020-02-29 9.5 2020-03-31 9.5 2020-04-30 4.4 2020-05-31 4.2 2020-06-30 3.5 2020-07-31 5 2020-08-31 1.3 2020-09-30 5 2020-10-31 11.4 2020-11-30 11.6 2020-12-31 6.8 2021-01-31 2.9 2021-02-28 2.6 2021-03-31 4.6 2021-04-30 4.8 2021-05-31 13.3 2021-06-30 12.7 2021-07-31 9.8 2021-08-31 2.6 2021-09-30 4.8 2021-10-31 8.7 2021-11-30 9.4 2021-12-31 6.3 2022-01-31 6.6 2022-02-28 8.5 2022-03-31 10.3 2022-04-30 9.3 2022-05-31 15.2 2022-06-30 15.1 2022-07-31 12.7 2022-08-31 4.5 2022-09-30 6.8 2022-10-31 10 2022-11-30 10 2022-12-31 6.6 2023-01-31 6.2 2023-02-28 9.1 2023-03-31 11