Year	Percent
2005-01-01	0.0000000000000000
2006-01-01	0.0000000000000000
2007-01-01	5.3375900000000005
2008-01-01	6.5576899999999990
2009-01-01	7.2828000000000000
2010-01-01	8.0984300000000000
2011-01-01	8.8471000000000000
2012-01-01	9.7317800000000000
2013-01-01	9.4841900000000000
2014-01-01	9.4001100000000000
2015-01-01	9.4053800000000010
2016-01-01	9.0568900000000000
2017-01-01	9.0932200000000000