Year	Percent
1995	7.721
1996	7.183
1997	7.12
1998	7.086
1999	6.855
2000	7.764
2001	7.721
2002	8.029
2003	7.604
2004	8.086
2005	7.483
2006	7.001
2007	6.73
2008	7.303
2009	8.11
2010	8.095