Year	Percent
2011-01-01	8.259139999999999
2012-01-01	8.259139999999999
2013-01-01	8.259139999999999
2014-01-01	9.476100000000000
2015-01-01	9.476100000000000
2016-01-01	9.476100000000000
2017-01-01	8.934740000000000