Year Percent 2009-01-01 0.090075000000000000 2010-01-01 0.086091000000000000 2011-01-01 0.068192999999999990 2012-01-01 0.061001000000000000 2013-01-01 0.056326999999999995 2014-01-01 0.056326999999999995 2015-01-01 1.454300000000000000 2016-01-01 1.566180000000000000