Year	Percent
1995	28.85
1996	33.75
1997	30.23
1998	26.55
1999	24.99
2000	21.98
2001	23.94
2002	16.53
2003	11.8
2004	9.421
2005	8.81
2006	8.804
2007	9.86
2008	10.36
2009	9.494
2010	11.12