Year Percent Change From Preceding Period 2004-01-01 1.459120882135380 2005-01-01 3.884067364966670 2006-01-01 2.465592217965590 2007-01-01 1.895515512074060 2008-01-01 6.314723506610170 2009-01-01 1.008576829929730 2010-01-01 1.366308627256710 2011-01-01 4.895189158742680 2012-01-01 1.299602096253420 2013-01-01 2.583648180762590 2014-01-01 0.448682076766132 2015-01-01 1.244058195857020 2016-01-01 0.723966601987903 2017-01-01 0.831138126545783 2018-01-01 1.700000000000230 2019-01-01 2.000000000000060