Year	Percent
1995	9.771
1996	10.28
1997	9.938
1998	9.83
1999	10.37
2000	10.13
2001	11.81
2002	11.7
2003	11.94
2004	11.28
2005	13.02
2006	13.36
2007	12.46
2008	12.01
2009	12.12
2010	12.12