Year Percent Change From Preceding Period 2004-01-01 3.1656612418653200 2005-01-01 1.2289125665881500 2006-01-01 1.8067939178421100 2007-01-01 6.5868056336592200 2008-01-01 4.6911285660469100 2009-01-01 5.2955970802212700 2010-01-01 3.8822566482054900 2011-01-01 1.9187938468493900 2012-01-01 -0.9663690634394560 2013-01-01 2.2550544323478900 2014-01-01 2.7410575427684300 2015-01-01 0.0680404354583437 2016-01-01 -0.5929237947118440 2017-01-01 1.0886469673405600 2018-01-01 0.4082426127528230 2019-01-01 1.7690513219282200