Year	Percent
1995	12.95
1996	10.81
1997	10.23
1998	11.01
1999	10.93
2000	9.057
2001	10.54
2002	11.22
2003	12.66
2004	12.43
2005	12.96
2006	12.35
2007	12.4
2008	13.46
2009	12.06
2010	12.61