Year	Percent
1990	58.33
1991	58.33
1992	58.33
1993	58.33
1994	58.33
1995	58.33
1996	58.33
1997	58.33
1998	58.33
1999	58.33
2000	58.33
2001	58.33
2002	58.33
2003	58.33
2004	58.33
2005	58.33
2006	57.83
2007	57.33
2008	56.83
2009	56.33
2010	55.83
2011	55.83
2012	55.83
2013	55.83
2014	55.83
2015	55.83