Year Percent 2011-01-01 0.8891620000000001 2012-01-01 0.8891620000000001 2013-01-01 0.8891620000000001 2014-01-01 4.8583900000000000 2015-01-01 4.8583900000000000 2016-01-01 4.8583900000000000 2017-01-01 2.9877100000000000