Year	Percent
1995	10.63
1996	11.33
1997	7.903
1998	7.793
1999	8.73
2000	7.026
2001	7.164
2002	7.005
2003	7.94
2004	9.072
2005	9.108
2006	9.344
2007	9.764
2008	10.31
2009	10.93
2010	11.11