Year Percent Change From Preceding Period 2004-01-01 1.451734362538460 2005-01-01 2.574449601226740 2006-01-01 -0.969216372825212 2007-01-01 1.426821750337350 2008-01-01 -9.783029746264070 2009-01-01 3.876501920321750 2010-01-01 2.194189769212080 2011-01-01 8.721915513285540 2012-01-01 6.983460699170300 2013-01-01 4.649581768715260 2014-01-01 2.868090892669520 2015-01-01 2.586444483279350 2016-01-01 1.850388934431620 2017-01-01 5.012312164208210 2018-01-01 4.194111644365790 2019-01-01 3.780437487017850