Month Percent 1998-09-30 -5.4 1998-10-31 7.9 1998-11-30 -3.5 1998-12-31 -4.3 1999-01-31 9.4 1999-02-28 2.1 1999-03-31 15.6 1999-04-30 12.9 1999-05-31 12.3 1999-06-30 9.6 1999-07-31 0.6 1999-08-31 -0.7 1999-09-30 1.6 1999-10-31 -2 1999-11-30 7 1999-12-31 15.2 2000-01-31 3.1 2000-02-29 13.9 2000-03-31 2.6 2000-04-30 4.8 2000-05-31 4.2 2000-06-30 10.5 2000-07-31 15.1 2000-08-31 34.9 2000-09-30 21.5 2000-10-31 21.3 2000-11-30 18.7 2000-12-31 7.7 2001-01-31 19.5 2001-02-28 10.1 2001-03-31 16.6 2001-04-30 18.3 2001-05-31 16.7 2001-06-30 18.8 2001-07-31 16.8 2001-08-31 1.7 2001-09-30 14.2 2001-10-31 0 2001-11-30 14.4 2001-12-31 18.1 2002-01-31 14.5 2002-02-28 12.6 2002-03-31 9.9 2002-04-30 0.6 2002-05-31 3.3 2002-06-30 0.9 2002-07-31 -0.6 2002-08-31 3.6 2002-09-30 0.6 2002-10-31 12.5 2002-11-30 -9.5 2002-12-31 -4.4 2003-01-31 -10 2003-02-28 -3 2003-03-31 -4.6 2003-04-30 -0.1 2003-05-31 -4.5 2003-06-30 -3.8 2003-07-31 -7 2003-08-31 -4.3 2003-09-30 -10.2 2003-10-31 -12.5 2003-11-30 -5.5 2003-12-31 -13.8 2004-01-31 -10.5 2004-02-29 -13.8 2004-03-31 -8.9 2004-04-30 -6 2004-05-31 -6.5 2004-06-30 -7 2004-07-31 -1.3 2004-08-31 -3.4 2004-09-30 4 2004-10-31 5.4 2004-11-30 3.2 2004-12-31 10.3 2005-01-31 8.7 2005-02-28 10.1 2005-03-31 7 2005-04-30 7.9 2005-05-31 14 2005-06-30 13.3 2005-07-31 24 2005-08-31 17.2 2005-09-30 15 2005-10-31 18.3 2005-11-30 16.4 2005-12-31 13.9 2006-01-31 16.1 2006-02-28 17.4 2006-03-31 15.8 2006-04-30 11.6 2006-05-31 12.7 2006-06-30 19 2006-07-31 12.2 2006-08-31 16.1 2006-09-30 23.3 2006-10-31 17.9 2006-11-30 23.3 2006-12-31 25.1 2007-01-31 25.1 2007-02-28 22.7 2007-03-31 23.5 2007-04-30 27.6 2007-05-31 25 2007-06-30 13.2 2007-07-31 22.8 2007-08-31 21 2007-09-30 17.7 2007-10-31 26.7 2007-11-30 19.5 2007-12-31 30 2008-01-31 43 2008-02-29 40.7 2008-03-31 35.5 2008-04-30 48.5 2008-05-31 33.5 2008-06-30 41.3 2008-07-31 28.8 2008-08-31 47 2008-09-30 35.5 2008-10-31 20.5 2008-11-30 22.2 2008-12-31 25.9 2009-01-31 10.8 2009-02-28 10 2009-03-31 12.2 2009-04-30 -1.9 2009-05-31 -1 2009-06-30 -8.4 2009-07-31 -8.9 2009-08-31 -17.8 2009-09-30 -7 2009-10-31 -0.4 2009-11-30 7.5 2009-12-31 -25.2 2010-01-31 -21.5 2010-02-28 -19.8 2010-03-31 -21.2 2010-04-30 -17.3 2010-05-31 -8.9 2010-06-30 -5.3 2010-07-31 -15.3 2010-08-31 -13.4 2010-09-30 -18 2010-10-31 -19.7 2010-11-30 -22.6 2010-12-31 -4.2 2011-01-31 -9.6 2011-02-28 -11.2 2011-03-31 -10 2011-04-30 -12.8 2011-05-31 -22.7 2011-06-30 -19.6 2011-07-31 -8.9 2011-08-31 -15.7 2011-09-30 -16.7 2011-10-31 -22.1 2011-11-30 -21.9 2011-12-31 -19.3 2012-01-31 -18.8 2012-02-29 -19.8 2012-03-31 -19.1 2012-04-30 -19.4 2012-05-31 -8.4 2012-06-30 -9.7 2012-07-31 -9.1 2012-08-31 -4.8 2012-09-30 -4.6 2012-10-31 2.2 2012-11-30 1.8 2012-12-31 0.9 2013-01-31 -2.8 2013-02-28 7.7 2013-03-31 5 2013-04-30 10.3 2013-05-31 5.2 2013-06-30 4.5 2013-07-31 4.1 2013-08-31 -2.2 2013-09-30 -1.6 2013-10-31 1.3 2013-11-30 -1.4 2013-12-31 -2 2014-01-31 -0.6 2014-02-28 -3.3 2014-03-31 3.4 2014-04-30 0.3 2014-05-31 -0.8 2014-06-30 2.1 2014-07-31 0.6 2014-08-31 6.7 2014-09-30 6.5 2014-10-31 2.9 2014-11-30 4.7 2014-12-31 13.6 2015-01-31 9.8 2015-02-28 14 2015-03-31 10.2 2015-04-30 9.2 2015-05-31 14.6 2015-06-30 12.9 2015-07-31 12.7 2015-08-31 16.1 2015-09-30 14.6 2015-10-31 13.4 2015-11-30 14.8 2015-12-31 8 2016-01-31 18.6 2016-02-29 11.1 2016-03-31 8.6 2016-04-30 11.3 2016-05-31 8.5 2016-06-30 14.2 2016-07-31 14 2016-08-31 14.1 2016-09-30 14.4 2016-10-31 22.7 2016-11-30 20.4 2016-12-31 21.2 2017-01-31 15.3 2017-02-28 17 2017-03-31 22.9 2017-04-30 20.3 2017-05-31 26 2017-06-30 15.1 2017-07-31 7.1 2017-08-31 3.4 2017-09-30 2.2 2017-10-31 -1.6 2017-11-30 -3 2017-12-31 -1.1 2018-01-31 -3.4 2018-02-28 -4.6 2018-03-31 -9.1 2018-04-30 -7.3 2018-05-31 -3.5 2018-06-30 -4.6 2018-07-31 2.3 2018-08-31 3.8 2018-09-30 10.1 2018-10-31 5.7 2018-11-30 5.6 2018-12-31 3.4 2019-01-31 6.2 2019-02-28 -1.2 2019-03-31 6.8 2019-04-30 4.7 2019-05-31 -3.1 2019-06-30 4.5 2019-07-31 6.9 2019-08-31 6.6 2019-09-30 -1.3 2019-10-31 -3.1 2019-11-30 1.4 2019-12-31 -4.8 2020-01-31 -1.8 2020-02-29 7.3 2020-03-31 -0.5 2020-04-30 -0.6 2020-05-31 2.2 2020-06-30 -2 2020-07-31 -10.1 2020-08-31 -11.4 2020-09-30 -5.9 2020-10-31 0.7 2020-11-30 -3.3 2020-12-31 1.8