Year	Percent
1995-01-01	50.0211
1996-01-01	50.4080
1997-01-01	50.6004
1998-01-01	64.3193
1999-01-01	64.9983
2000-01-01	60.4558
2001-01-01	63.6712
2002-01-01	63.5365
2003-01-01	58.3801
2004-01-01	57.8159
2005-01-01	60.2309
2006-01-01	61.7184
2007-01-01	62.2762
2008-01-01	61.1804
2009-01-01	58.7669
2010-01-01	55.6359
2011-01-01	55.6718
2012-01-01	55.3296
2013-01-01	51.5567
2014-01-01	47.6641