Month Percent 1993-04-30 6.2 1993-05-31 6.1 1993-06-30 5.9 1993-07-31 5.7 1993-08-31 5.3 1993-09-30 5.6 1993-10-31 5.7 1993-11-30 5.8 1993-12-31 5.9 1994-01-31 6 1994-02-28 6.2 1994-03-31 6.3 1994-04-30 6.2 1994-05-31 6.2 1994-06-30 6.2 1994-07-31 6.1 1994-08-31 6.2 1994-09-30 6.1 1994-10-31 6.1 1994-11-30 6.1 1994-12-31 6.1 1995-01-31 6 1995-02-28 5.9 1995-03-31 5.8 1995-04-30 5.6 1995-05-31 5.6 1995-06-30 5.5 1995-07-31 5.3 1995-08-31 5.2 1995-09-30 5 1995-10-31 4.9 1995-11-30 4.8 1995-12-31 4.7 1996-01-31 4.7 1996-02-29 4.7 1996-03-31 4.6 1996-04-30 4.6 1996-05-31 4.7 1996-06-30 4.7 1996-07-31 4.9 1996-08-31 5 1996-09-30 4.8 1996-10-31 5 1996-11-30 5.1 1996-12-31 5.2 1997-01-31 5.4 1997-02-28 5.5 1997-03-31 5.5 1997-04-30 5.6 1997-05-31 5.6 1997-06-30 5.7 1997-07-31 5.8 1997-08-31 5.8 1997-09-30 6.1 1997-10-31 6 1997-11-30 5.9 1997-12-31 5.8 1998-01-31 5.7 1998-02-28 5.6 1998-03-31 5.5 1998-04-30 5.6 1998-05-31 5.4 1998-06-30 5.4 1998-07-31 5.5 1998-08-31 5.5 1998-09-30 5.5 1998-10-31 5.5 1998-11-30 5.5 1998-12-31 5.6 1999-01-31 5.6 1999-02-28 5.4 1999-03-31 5.7 1999-04-30 5.9 1999-05-31 6.1 1999-06-30 6.2 1999-07-31 6.4 1999-08-31 6.6 1999-09-30 6.9 1999-10-31 6.8 1999-11-30 7.1 1999-12-31 7.3 2000-01-31 7.4 2000-02-29 7.7 2000-03-31 7.7 2000-04-30 7.6 2000-05-31 7.5 2000-06-30 7.7 2000-07-31 6.9 2000-08-31 6.9 2000-09-30 6.4 2000-10-31 6.5 2000-11-30 5.9 2000-12-31 5.9 2001-01-31 6 2001-02-28 5.9 2001-03-31 5.6 2001-04-30 5.8 2001-05-31 5.7 2001-06-30 5.7 2001-07-31 6 2001-08-31 6.3 2001-09-30 6.5 2001-10-31 6.9 2001-11-30 7.2 2001-12-31 7.3 2002-01-31 7.6 2002-02-28 8 2002-03-31 8 2002-04-30 8.4 2002-05-31 9.4 2002-06-30 8.9 2002-07-31 9.8 2002-08-31 10 2002-09-30 10.1 2002-10-31 10.6 2002-11-30 10.8 2002-12-31 11.1 2003-01-31 10.8 2003-02-28 11 2003-03-31 10.2 2003-04-30 10.4 2003-05-31 9.7 2003-06-30 10.3 2003-07-31 10.5 2003-08-31 10.5 2003-09-30 10.9 2003-10-31 11.3 2003-11-30 11.2 2003-12-31 11.2 2004-01-31 11.4 2004-02-29 11.4 2004-03-31 12 2004-04-30 11.5 2004-05-31 11.1 2004-06-30 11.7 2004-07-31 11 2004-08-31 10.7 2004-09-30 10.3 2004-10-31 9.6 2004-11-30 9.3 2004-12-31 9.3 2005-01-31 8.7 2005-02-28 7.5 2005-03-31 7.5 2005-04-30 7.5 2005-05-31 7.3 2005-06-30 6.1 2005-07-31 6.2 2005-08-31 6 2005-09-30 6.3 2005-10-31 5.9 2005-11-30 6.8 2005-12-31 6.1 2006-01-31 4.6 2006-02-28 5.5 2006-03-31 5.5 2006-04-30 5.1 2006-05-31 5.6 2006-06-30 6.6 2006-07-31 6.9 2006-08-31 6.8 2006-09-30 6.4 2006-10-31 6 2006-11-30 5.1 2006-12-31 6 2007-01-31 7.7 2007-02-28 7.9 2007-03-31 7.3 2007-04-30 7.9 2007-05-31 6.2 2007-06-30 5.4 2007-07-31 5.2 2007-08-31 4.7 2007-09-30 4.3 2007-10-31 5.1 2007-11-30 4.3 2007-12-31 2.9 2008-01-31 3.5 2008-02-29 3.7 2008-03-31 4.3 2008-04-30 2.1 2008-05-31 4.2 2008-06-30 4.1 2008-07-31 1.4 2008-08-31 0 2008-09-30 -0.4 2008-10-31 -2.4 2008-11-30 -2.1 2008-12-31 -5.3 2009-01-31 -6 2009-02-28 -6.7 2009-03-31 -6.7 2009-04-30 -5.3 2009-05-31 -6.1 2009-06-30 -6 2009-07-31 -4.2 2009-08-31 -2.8 2009-09-30 -2.6 2009-10-31 -1 2009-11-30 -0.3 2009-12-31 3.9 2010-01-31 3.9 2010-02-28 3.8 2010-03-31 3.5 2010-04-30 3.4 2010-05-31 3.2 2010-06-30 3 2010-07-31 2.7 2010-08-31 2.6 2010-09-30 2.8 2010-10-31 2.4 2010-11-30 1.9 2010-12-31 1.4 2011-01-31 1.4 2011-02-28 1.3 2011-03-31 1.3 2011-04-30 1.2 2011-05-31 1.2 2011-06-30 1.2 2011-07-31 1.1 2011-08-31 1.1 2011-09-30 1.1 2011-10-31 1.1 2011-11-30 1.1 2011-12-31 1.1 2012-01-31 1.1 2012-02-29 1.2 2012-03-31 1.2 2012-04-30 1.2 2012-05-31 1.3 2012-06-30 1.2 2012-07-31 1.2 2012-08-31 1.2 2012-09-30 1.1 2012-10-31 1.1 2012-11-30 1.1 2012-12-31 1 2013-01-31 1 2013-02-28 0.9 2013-03-31 0.8 2013-04-30 0.8 2013-05-31 0.7 2013-06-30 0.8 2013-07-31 0.8 2013-08-31 0.9 2013-09-30 1 2013-10-31 1.1 2013-11-30 1.2 2013-12-31 1.3 2014-01-31 1.4 2014-02-28 1.6 2014-03-31 1.7 2014-04-30 1.9 2014-05-31 2.1 2014-06-30 2.2 2014-07-31 2.3 2014-08-31 2.3 2014-09-30 2.4 2014-10-31 2.4 2014-11-30 2.4 2014-12-31 2.4 2015-01-31 2.3 2015-02-28 2.2 2015-03-31 2.2