Year Percent 2003-01-01 1.5584100000000000 2004-01-01 5.6474000000000000 2005-01-01 3.8232500000000000 2006-01-01 4.2018100000000000 2007-01-01 3.9564800000000004 2008-01-01 3.3859300000000000 2009-01-01 3.5955800000000004 2010-01-01 3.6292600000000000 2011-01-01 2.5699400000000003 2012-01-01 2.7100900000000000 2013-01-01 1.5435200000000000 2014-01-01 2.2355700000000000 2015-01-01 -0.5926010000000000 2016-01-01 0.2962470000000000