Year	Percent
1995	7.604
1996	7.323
1997	7.192
1998	7.115
1999	7.164
2000	7.1
2001	7.171
2002	6.971
2003	6.654
2004	6.565
2005	6.621
2006	6.593
2007	7.021
2008	7.438
2009	7.312
2010	7.34