Year	Percent
1995	6.85
1996	6.916
1997	6.474
1998	6.281
1999	6.064
2000	5.911
2001	5.877
2002	6.106
2003	6.513
2004	7.002
2005	7.036
2006	8.031
2007	8.137
2008	8.382
2009	8.322
2010	7.892