Year	Percent
2011-01-01	3.8006599999999997
2012-01-01	3.8006599999999997
2013-01-01	3.8006599999999997
2014-01-01	4.0760800000000000
2015-01-01	4.0760800000000000
2016-01-01	4.0760800000000000
2017-01-01	7.1978700000000000