Year	Percent
1995	11.48
1996	13.95
1997	13.57
1998	13.51
1999	13.61
2000	13.69
2001	13.13
2002	13.49
2003	12.81
2004	14.22
2005	14.08
2006	13.83
2007	13.54
2008	13.68
2009	14.94
2010	14.94