Year Percent 2006-01-01 -9.5238100000000010 2007-01-01 17.4419000000000000 2008-01-01 11.2245000000000000 2009-01-01 -3.1250000000000000 2010-01-01 -2.1739100000000000 2011-01-01 3.1250000000000000 2012-01-01 2.0618600000000000 2013-01-01 6.0000000000000000 2014-01-01 6.6985600000000005 2015-01-01 -4.2140699999999995 2016-01-01 -4.7562500000000000