Year	Percent
1995-01-01	25
1996-01-01	40
1997-01-01	50
1998-01-01	67
1999-01-01	67
2000-01-01	78
2001-01-01	78
2002-01-01	78
2003-01-01	73
2004-01-01	75
2005-01-01	83
2006-01-01	79
2007-01-01	86
2008-01-01	85
2009-01-01	85
2010-01-01	85
2011-01-01	85
2012-01-01	85
2013-01-01	85