Year	Percent
1995	10.69
1996	12.68
1997	9.936
1998	8.778
1999	9.951
2000	10.71
2001	10.87
2002	10.7
2003	10.08
2004	10.31
2005	10.56
2006	8.34
2007	8.535
2008	8.581
2009	8.835
2010	8.045