Year	Percent
1995	7.392
1996	7.476
1997	7.722
1998	7.592
1999	7.318
2000	7.348
2001	7.868
2002	7.777
2003	7.706
2004	7.591
2005	7.666
2006	7.443
2007	7.426
2008	7.49
2009	7.632
2010	7.632