Year	Percent
1995	7.033
1996	7.144
1997	9.622
1998	7.968
1999	8.575
2000	9.146
2001	9.791
2002	10.78
2003	13.52
2004	12.22
2005	13.23
2006	11.46
2007	11.28
2008	11.36
2009	10.84
2010	10.84