Year	Percent
1995	7.073
1996	7.018
1997	7.224
1998	7.653
1999	7.534
2000	7.618
2001	7.722
2002	8.041
2003	7.856
2004	8.032
2005	8.395
2006	8.809
2007	8.531
2008	9.257
2009	9.973
2010	10.1