Year	Percent
2011-01-01	3.5413900000000003
2012-01-01	3.5413900000000003
2013-01-01	3.5413900000000003
2014-01-01	6.8337400000000000
2015-01-01	6.8337400000000000
2016-01-01	6.8337400000000000
2017-01-01	8.7541200000000000