Year	Percent
1995	9.546
1996	9.467
1997	9.285
1998	9.825
1999	10.73
2000	10.92
2001	11.16
2002	11.53
2003	11.17
2004	10.3
2005	10.41
2006	10.71
2007	11.06
2008	11.54
2009	11.42
2010	11.87