Year	Percent
1995	8.379
1996	7.816
1997	8.487
1998	7.501
1999	7.769
2000	7.293
2001	8.332
2002	6.772
2003	12.17
2004	10.22
2005	8.952
2006	7.788
2007	7.717
2008	7.709
2009	9.032
2010	9.115