Year	Percent
1995	9.146
1996	9.562
1997	9.821
1998	10.05
1999	10.17
2000	10.63
2001	11.13
2002	11.54
2003	12.07
2004	12.25
2005	12.61
2006	12.68
2007	12.61
2008	12.54
2009	12.1
2010	12.15