Year Percent 2011-01-01 3.7653199999999996 2012-01-01 3.7653199999999996 2013-01-01 3.7653199999999996 2014-01-01 3.6657300000000004 2015-01-01 3.6657300000000004 2016-01-01 3.6657300000000004 2017-01-01 7.5112700000000000