Year Percent 2008-01-01 0.369199000000000000 2009-01-01 0.369199000000000000 2010-01-01 0.369199000000000000 2011-01-01 0.007937999999999999 2012-01-01 0.007937999999999999 2013-01-01 1.313780000000000000 2014-01-01 2.232280000000000000