Year	Percent
1995	8.525
1996	8.754
1997	9.232
1998	10.14
1999	8.718
2000	8.758
2001	8.501
2002	9.359
2003	9.286
2004	8.726
2005	8.089
2006	7.839
2007	6.866
2008	6.811
2009	6.852
2010	7.088