Year	Percent
1995	10.66
1996	10.05
1997	10.78
1998	11.53
1999	10.34
2000	9.763
2001	9.545
2002	9.072
2003	9.729
2004	10.75
2005	11.28
2006	11.95
2007	12.13
2008	12.79
2009	12.79
2010	12.79