Year Percent Change From Preceding Period 2004-01-01 0.945996932698590 2005-01-01 0.726662364501224 2006-01-01 2.920955475663380 2007-01-01 2.702444183883360 2008-01-01 0.146994169270557 2009-01-01 -0.225216458953124 2010-01-01 1.064476943955160 2011-01-01 1.313672337469330 2012-01-01 2.110069090301610 2013-01-01 -37.917623078672100 2014-01-01 -0.903545072951561 2015-01-01 2.784093228359780 2016-01-01 2.520490377486060 2017-01-01 2.321927415344990 2018-01-01 2.333657895499880 2019-01-01 3.023790868498160