Year	Percent
1995	7.162
1996	6.951
1997	7.515
1998	6.198
1999	6.371
2000	6.049
2001	6.625
2002	6.26
2003	7.363
2004	7.539
2005	7.43
2006	8.22
2007	7.622
2008	7.619
2009	8.014
2010	8.541