Year	Percent
1995	11.27
1996	11.59
1997	11.19
1998	10.51
1999	11.18
2000	10.23
2001	10.26
2002	9.468
2003	9.64
2004	9.433
2005	10.04
2006	9.488
2007	9.818
2008	10.85
2009	11.41
2010	11.41