Year	Percent
1995	55
1996	55.71
1997	57.92
1998	55.77
1999	54
2000	55.8
2001	50.75
2002	55.81
2003	52.25
2004	52.32
2005	50.31
2006	49.78
2007	49
2008	48.3
2009	46.2
2010	50.5