Year	Percent
1995-01-01	60
1996-01-01	50
1997-01-01	50
1998-01-01	50
1999-01-01	50
2000-01-01	50
2001-01-01	50
2002-01-01	43
2003-01-01	43
2004-01-01	43
2005-01-01	43
2006-01-01	43
2007-01-01	43
2008-01-01	43
2009-01-01	43
2010-01-01	43
2011-01-01	43
2012-01-01	43
2013-01-01	43