Year Percent Change From Preceding Period 2004-01-01 5.42049768815905 2005-01-01 3.26872583252926 2006-01-01 4.70000000000004 2007-01-01 9.59999999999999 2008-01-01 7.63973676622312 2009-01-01 8.32811027613164 2010-01-01 6.87406563967396 2011-01-01 4.85405510963821 2012-01-01 1.88579950753363 2013-01-01 5.19999999999944 2014-01-01 5.70000000000007 2015-01-01 2.94999999999997 2016-01-01 2.27000000000033 2017-01-01 4.00000000000015 2018-01-01 3.29999999999992 2019-01-01 4.69999999999945