Year Percent Change From Preceding Period 2004-01-01 4.23328456571434 2005-01-01 3.58538264175418 2006-01-01 6.03290489687564 2007-01-01 5.52290182377603 2008-01-01 11.16474377533790 2009-01-01 7.92629092226958 2010-01-01 3.06003691179494 2011-01-01 7.39698880535148 2012-01-01 6.38287095024227 2013-01-01 4.89351131625800 2014-01-01 4.63382962515779 2015-01-01 3.69622835772972 2016-01-01 7.29779391442284 2017-01-01 5.16738909328325 2018-01-01 2.86016758539172 2019-01-01 5.75000000000001