Year	Percent
1995	7.455
1996	7.639
1997	7.756
1998	7.81
1999	7.799
2000	8.264
2001	8.569
2002	8.62
2003	8.609
2004	8.339
2005	8.41
2006	8.274
2007	7.787
2008	8.359
2009	9.286
2010	9.41