Year Percent Change 2004-01-01 2.68481137 2005-01-01 20.36130196 2006-01-01 10.02764206 2007-01-01 21.65919203 2008-01-01 6.47932023 2009-01-01 7.09997207 2010-01-01 6.06375660 2011-01-01 -52.49781830 2012-01-01 43.65866483 2013-01-01 8.70000000 2014-01-01 -1.00000000 2015-01-01 -3.00000000