Year Percent Change From Preceding Period 2004-01-01 1.992855050956120 2005-01-01 0.542275926658400 2006-01-01 0.886528292456277 2007-01-01 5.104094848608510 2008-01-01 2.866808759265240 2009-01-01 0.844355406505615 2010-01-01 2.952577094528220 2011-01-01 3.880325268884930 2012-01-01 12.579219998514800 2013-01-01 18.030036697668300 2014-01-01 1.312681933942990 2015-01-01 -22.203481157301400 2016-01-01 4.008922523996710 2017-01-01 1.441502194429830 2018-01-01 1.456419283889040 2019-01-01 3.273501427583010