Year Percent Change 2007-01-01 6.3163 2008-01-01 5.9672 2009-01-01 -12.9422 2010-01-01 4.0101 2011-01-01 -0.5233 2012-01-01 -1.6203 2013-01-01 0.4195 2014-01-01 0.1618 2015-01-01 3.9832 2016-01-01 4.1397 2017-01-01 -0.0920 2018-01-01 -0.0920 2019-01-01 -1.8427