Year Percent Change From Preceding Period 2004-01-01 7.7214100966550600 2005-01-01 11.6785548280680000 2006-01-01 8.2987215368615500 2007-01-01 10.6894436294101000 2008-01-01 7.9281717356411900 2009-01-01 -2.0790611139805200 2010-01-01 1.8050675572496300 2011-01-01 0.4582343475790870 2012-01-01 5.3807255672800300 2013-01-01 1.8976606561484800 2014-01-01 1.7695393702993200 2015-01-01 -2.0074378039096400 2016-01-01 -5.4917490651693100 2017-01-01 -5.3398058252427100 2018-01-01 -3.0273565330829000 2019-01-01 0.0534560706234012