Quarter Percent 1998-09-30 8.4 1998-12-31 7.8 1999-03-31 4.7 1999-06-30 5.4 1999-09-30 5.4 1999-12-31 6.9 2000-03-31 6.4 2000-06-30 6.3 2000-09-30 3.8 2000-12-31 3.8 2001-03-31 2.9 2001-06-30 -0.7 2001-09-30 -0.5 2001-12-31 -1.7 2002-03-31 -1.3 2002-06-30 4 2002-09-30 4 2002-12-31 3.9 2003-03-31 5.6 2003-06-30 5.9 2003-09-30 4.6 2003-12-31 2.9 2004-03-31 3.4 2004-06-30 0.9 2004-09-30 3.1 2004-12-31 4.4 2005-03-31 5.1 2005-06-30 4.4 2005-09-30 5 2005-12-31 12.2 2006-03-31 11.5 2006-06-30 6.9 2006-09-30 5.8 2006-12-31 3.2 2007-03-31 0.6 2007-06-30 6.3 2007-09-30 7.4 2007-12-31 5.1 2008-03-31 6.3 2008-06-30 7.4 2008-09-30 7.6 2008-12-31 5.1 2009-03-31 6.9 2009-06-30 5.9 2009-09-30 4.8 2009-12-31 4.5 2010-03-31 5.2 2010-06-30 4.4 2010-09-30 3.9 2010-12-31 4.9 2011-03-31 3.3 2011-06-30 2.7 2011-09-30 2.4 2011-12-31 3.6 2012-03-31 5.1 2012-06-30 6.2 2012-09-30 7.8 2012-12-31 9.7 2013-03-31 10 2013-06-30 10.3 2013-09-30 10.1 2013-12-31 8.5 2014-03-31 8.2 2014-06-30 9.6 2014-09-30 8.9 2014-12-31 10.4 2015-03-31 10.4 2015-06-30 9.4 2015-09-30 10 2015-12-31 12.9 2016-03-31 9.5 2016-06-30 7.5 2016-09-30 5.9 2016-12-31 1.9 2017-03-31 3.9 2017-06-30 4.4 2017-09-30 2.8 2017-12-31 3 2018-03-31 1.7 2018-06-30 1 2018-09-30 2.5 2018-12-31 2.8 2019-03-31 3 2019-06-30 2.5 2019-09-30 1.6 2019-12-31 -0.1 2020-03-31 -0.5 2020-06-30 1.4 2020-09-30 2 2020-12-31 3.3 2021-03-31 4.5 2021-06-30 2.3 2021-09-30 0.8 2021-12-31 -0.1 2022-03-31 -1.4 2022-06-30 -1.6 2022-09-30 -3 2022-12-31 -3.5 2023-03-31 -3.7 2023-06-30 -4.2 2023-09-30 -3.9 2023-12-31 -2