Year	Percent
1995	9.94
1996	9.514
1997	9.569
1998	9.281
1999	8.956
2000	8.681
2001	9.032
2002	9.111
2003	9.309
2004	10.26
2005	10.15
2006	11.37
2007	11.85
2008	10.55
2009	9.211
2010	9.211