Year Percent 2008-01-01 -1.3503500000000000 2009-01-01 3.4597200000000000 2010-01-01 2.1251100000000000 2011-01-01 1.7033599999999998 2012-01-01 1.8305099999999999 2013-01-01 1.3288300000000000