Year Percent Change From Preceding Period 2004-01-01 4.443220778988410 2005-01-01 2.530506621331640 2006-01-01 2.036833396453180 2007-01-01 1.456319106627330 2008-01-01 8.954201486900130 2009-01-01 -1.669129799812640 2010-01-01 5.103766243440750 2011-01-01 1.967225492735750 2012-01-01 3.409214709818510 2013-01-01 0.415397482527851 2014-01-01 0.853530794953160 2015-01-01 1.414968407938390 2016-01-01 -0.228150228150065 2017-01-01 1.055408970976150 2018-01-01 2.000000000000250 2019-01-01 1.999999999999440