Month Percent, Seasonally Adjusted 1997-04-01 3.1 1997-05-01 4.5 1997-06-01 4.7 1997-07-01 -1.9 1997-08-01 -1.6 1997-09-01 -1.2 1997-10-01 -4.3 1997-11-01 -3.8 1997-12-01 -3.4 1998-01-01 9.9 1998-02-01 10.0 1998-03-01 10.6 1998-04-01 7.1 1998-05-01 8.5 1998-06-01 8.7 1998-07-01 0.2 1998-08-01 0.6 1998-09-01 0.9 1998-10-01 -2.2 1998-11-01 -1.9 1998-12-01 -2.3 1999-01-01 15.7 1999-02-01 16.1 1999-03-01 16.7 1999-04-01 7.3 1999-05-01 8.5 1999-06-01 8.7 1999-07-01 21.7 1999-08-01 21.9 1999-09-01 22.2 1999-10-01 41.6 1999-11-01 41.9 1999-12-01 42.1 2000-01-01 30.3 2000-02-01 30.3 2000-03-01 30.5 2000-04-01 52.1 2000-05-01 52.2 2000-06-01 52.4 2000-07-01 54.4 2000-08-01 54.7 2000-09-01 54.7 2000-10-01 47.9 2000-11-01 48.1 2000-12-01 48.2 2001-01-01 12.5 2001-02-01 10.8 2001-03-01 9.7 2001-04-01 3.7 2001-05-01 3.5 2001-06-01 2.2 2001-07-01 8.6 2001-08-01 8.4 2001-09-01 8.3 2001-10-01 -28.6 2001-11-01 -30.0 2001-12-01 -31.3 2002-01-01 -28.3 2002-02-01 -25.0 2002-03-01 -28.7 2002-04-01 -39.4 2002-05-01 -35.6 2002-06-01 -24.6 2002-07-01 -28.4 2002-08-01 -31.4 2002-09-01 -34.6 2002-10-01 -32.4 2002-11-01 -35.2 2002-12-01 -27.1 2003-01-01 -19.1 2003-02-01 -27.8 2003-03-01 -34.2 2003-04-01 -45.5 2003-05-01 -10.4 2003-06-01 -0.5 2003-07-01 1.6 2003-08-01 5.8 2003-09-01 9.1 2003-10-01 14.7 2003-11-01 18.8 2003-12-01 16.6 2004-01-01 35.5 2004-02-01 32.4 2004-03-01 32.4 2004-04-01 36.2 2004-05-01 25.7 2004-06-01 25.5 2004-07-01 17.8 2004-08-01 11.6 2004-09-01 4.3 2004-10-01 12.7 2004-11-01 8.3 2004-12-01 -3.2 2005-01-01 16.3 2005-02-01 18.5 2005-03-01 25.1 2005-04-01 22.7 2005-05-01 14.0 2005-06-01 5.6 2005-07-01 4.6 2005-08-01 7.1 2005-09-01 10.2 2005-10-01 14.8 2005-11-01 16.0 2005-12-01 13.4 2006-01-01 14.0 2006-02-01 10.3 2006-03-01 18.9 2006-04-01 25.5 2006-05-01 26.6 2006-06-01 22.1 2006-07-01 26.2 2006-08-01 21.4 2006-09-01 23.0 2006-10-01 35.7 2006-11-01 39.8 2006-12-01 40.8 2007-01-01 36.2 2007-02-01 37.1 2007-03-01 39.2 2007-04-01 42.3 2007-05-01 43.6 2007-06-01 35.0 2007-07-01 36.7 2007-08-01 40.6 2007-09-01 40.2 2007-10-01 36.1 2007-11-01 35.5 2007-12-01 30.5 2008-01-01 30.7 2008-02-01 34.2 2008-03-01 25.1 2008-04-01 22.1 2008-05-01 12.4 2008-06-01 17.4 2008-07-01 17.9 2008-08-01 16.8 2008-09-01 15.4 2008-10-01 19.4 2008-11-01 10.4 2008-12-01 -7.0 2009-01-01 -14.5 2009-02-01 -18.6 2009-03-01 -17.1 2009-04-01 -26.6 2009-05-01 -21.1 2009-06-01 -14.1 2009-07-01 -16.4 2009-08-01 -15.2 2009-09-01 -14.5 2009-10-01 -19.6 2009-11-01 -23.8 2009-12-01 -17.0 2010-01-01 -22.3 2010-02-01 -20.7 2010-03-01 -19.8 2010-04-01 -22.3 2010-05-01 -37.6 2010-06-01 -34.4 2010-07-01 -38.6 2010-08-01 -35.7 2010-09-01 -32.3 2010-10-01 -32.0 2010-11-01 -36.2 2010-12-01 -27.7 2011-01-01 -25.9 2011-02-01 -24.5 2011-03-01 -28.9 2011-04-01 -27.0 2011-05-01 -36.8 2011-06-01 -33.2 2011-07-01 -26.6 2011-08-01 -21.0 2011-09-01 -18.6 2011-10-01 -32.3 2011-11-01 -31.5 2011-12-01 -33.3 2012-01-01 -36.2 2012-02-01 -38.1 2012-03-01 -34.1 2012-04-01 -27.9 2012-05-01 -34.4 2012-06-01 -43.2 2012-07-01 -46.6 2012-08-01 -47.3 2012-09-01 -38.3 2012-10-01 -39.7 2012-11-01 -25.7 2012-12-01 -30.9 2013-01-01 -33.2 2013-02-01 -32.4 2013-03-01 -34.7 2013-04-01 -32.7 2013-05-01 -16.6 2013-06-01 -4.2 2013-07-01 -1.5 2013-08-01 2.0 2013-09-01 -12.6 2013-10-01 -4.8 2013-11-01 -6.4 2013-12-01 -2.3 2014-01-01 -5.1 2014-02-01 1.4 2014-03-01 -0.7 2014-04-01 1.9 2014-05-01 13.9 2014-06-01 19.6 2014-07-01 18.9 2014-08-01 13.3 2014-09-01 13.7 2014-10-01 13.1 2014-11-01 21.6 2014-12-01 20.1 2015-01-01 23.8 2015-02-01 20.3 2015-03-01 10.8 2015-04-01 0.0 2015-05-01 1.6 2015-06-01 -4.2 2015-07-01 -25.7 2015-08-01 -38.5 2015-09-01 -18.5 2015-10-01 -21.4 2015-11-01 -31.8 2015-12-01 -24.3 2016-01-01 -11.8 2016-02-01 -28.2 2016-03-01 -18.6 2016-04-01 -13.4 2016-05-01 -12.4 2016-06-01 -22.8 2016-07-01 -10.5 2016-08-01 -5.2 2016-09-01 -5.8 2016-10-01 2.8 2016-11-01 3.0 2016-12-01 -4.1 2017-01-01 -1.3 2017-02-01 0.8 2017-03-01 6.3 2017-04-01 11.8 2017-05-01 10.1 2017-06-01 9.4 2017-07-01 21.9 2017-08-01 28.9 2017-09-01 22.8 2017-10-01 17.6 2017-11-01 12.2 2017-12-01 14.5 2018-01-01 9.8 2018-02-01 20.1 2018-03-01 19.2 2018-04-01 27.2 2018-05-01 25.5 2018-06-01 20.8 2018-07-01 19.3 2018-08-01 16.9 2018-09-01 14.7 2018-10-01 11.2