Quarter Index 2007:Q1=100, Seasonally Adjusted 2007-01-01 100.0 2007-04-01 100.4 2007-07-01 100.9 2007-10-01 101.2 2008-01-01 101.5 2008-04-01 101.8 2008-07-01 101.5 2008-10-01 101.1 2009-01-01 100.3 2009-04-01 99.9 2009-07-01 99.5 2009-10-01 99.3 2010-01-01 99.1 2010-04-01 99.0 2010-07-01 98.9 2010-10-01 99.2 2011-01-01 99.5 2011-04-01 99.6 2011-07-01 99.6 2011-10-01 99.5 2012-01-01 99.6 2012-04-01 99.5 2012-07-01 99.1 2012-10-01 98.8 2013-01-01 97.9 2013-04-01 97.6