Quarter Percent, Seasonally adjusted 2008-03-31 0.6 2008-06-30 0.3 2008-09-30 -0.5 2008-12-31 -1.2 2009-03-31 -1.7 2009-06-30 -1.9 2009-09-30 -1.4 2009-12-31 1.8 2010-03-31 -1.3 2010-06-30 -1.4 2010-09-30 -1.5 2010-12-31 -0.2 2011-03-31 -0.5 2011-06-30 -0.7 2011-09-30 -0.6 2011-12-31 -1.1 2012-03-31 -1.3 2012-06-30 -1.3 2012-09-30 -0.9 2012-12-31 0.2 2013-03-31 0.8 2013-06-30 1.3 2013-09-30 1.6 2013-12-31 1 2014-03-31 2.1 2014-06-30 2.4 2014-09-30 2.4 2014-12-31 1.9 2015-03-31 2.9