Year Percent 2011-01-01 3.3621300000000005 2012-01-01 3.3621300000000005 2013-01-01 3.3621300000000005 2014-01-01 5.2874099999999995 2015-01-01 5.2874099999999995 2016-01-01 5.2874099999999995 2017-01-01 10.0981000000000000