Year Percent Change From Preceding Period 2004-01-01 1.463559659422300 2005-01-01 5.496324883147580 2006-01-01 3.123465717078870 2007-01-01 1.019435047090820 2008-01-01 2.647503711333970 2009-01-01 -0.107459402525704 2010-01-01 5.220958192622980 2011-01-01 3.466371747911100 2012-01-01 3.309356280679890 2013-01-01 2.685072517143930 2014-01-01 1.281721700957300 2015-01-01 0.884941677536447 2016-01-01 2.871509961064240 2017-01-01 3.391362659654260 2018-01-01 4.404589721403520 2019-01-01 3.187710366965110