Year	Percent
1996-01-01	0.67496099999999990
1997-01-01	0.69068300000000000
1998-01-01	0.65804800000000000
1999-01-01	0.60126000000000000
2000-01-01	0.54656500000000000
2001-01-01	0.51348800000000000
2002-01-01	0.45676200000000000
2003-01-01	0.40573400000000004
2004-01-01	0.33465500000000004
2005-01-01	0.33317600000000000
2006-01-01	0.32356999999999997
2007-01-01	0.36129100000000000
2008-01-01	0.33608299999999997
2009-01-01	0.34541600000000000
2010-01-01	0.29526800000000000
2011-01-01	0.26848400000000000
2012-01-01	0.43591000000000000
2013-01-01	0.39499600000000000
2014-01-01	0.38838000000000000
2015-01-01	0.49853000000000003