Year Percent 2011-01-01 4.553030000000001 2012-01-01 4.553030000000001 2013-01-01 4.553030000000001 2014-01-01 19.979800000000000 2015-01-01 19.979800000000000 2016-01-01 19.979800000000000 2017-01-01 13.783200000000000