Year	Percent
2004-01-01	0.67806099999999990
2005-01-01	0.56224500000000000
2006-01-01	0.51247100000000000
2007-01-01	0.49378700000000000
2008-01-01	0.37398899999999996
2009-01-01	0.29715600000000000
2010-01-01	0.29270500000000000
2011-01-01	0.49281600000000000
2012-01-01	0.86577600000000000
2013-01-01	0.92226700000000010
2014-01-01	1.37573000000000000
2015-01-01	1.95933000000000000
2016-01-01	1.92245000000000000