Year	Percent
1995	6.915
1996	5.175
1997	6.126
1998	7.832
1999	8.487
2000	8.297
2001	8.372
2002	7.707
2003	7.623
2004	6.237
2005	4.796
2006	4.871
2007	4.303
2008	4.299
2009	4.31
2010	4.325