Year	Percent
1995	47.95
1996	54.28
1997	58.35
1998	57.67
1999	57.75
2000	58
2001	58.32
2002	58.77
2003	58.7
2004	58.61
2005	58.39
2006	54.83
2007	57.63
2008	56.48
2009	59.13
2010	61.17