Year	Percent
2009-01-01	0.44921000000000005
2010-01-01	0.50121400000000000
2011-01-01	0.59250500000000010
2012-01-01	0.67164099999999990
2013-01-01	0.83592400000000000
2014-01-01	0.81193300000000000
2015-01-01	0.74889500000000000
2016-01-01	0.84996299999999990