Year Percent Change From Preceding Period 2004-01-01 -6.27033336259400 2005-01-01 -7.41339426234986 2006-01-01 -3.55609913367733 2007-01-01 -3.40071958399703 2008-01-01 -16.32284948774820 2009-01-01 7.39605157292695 2010-01-01 15.44687273788910 2011-01-01 16.33246688628890 2012-01-01 13.60917038586860 2013-01-01 5.27035410250366 2014-01-01 2.76527069280734 2015-01-01 1.42393338653286 2016-01-01 0.66469613007067 2017-01-01 3.73748632720785 2018-01-01 3.63607555686295 2019-01-01 4.20245509696773