Year	Percent
2009-01-01	1.5762600000000000
2010-01-01	1.5120200000000001
2011-01-01	4.7887200000000000
2012-01-01	4.8520400000000010
2013-01-01	4.6790500000000000
2014-01-01	6.4745900000000000
2015-01-01	7.2376100000000010
2016-01-01	6.6389700000000000