Year	Percent
1995	9.64
1996	8.123
1997	7.673
1998	8.449
1999	8.986
2000	8.98
2001	8.7
2002	8.022
2003	7.322
2004	7.164
2005	7.121
2006	5.632
2007	5.516
2008	5.742
2009	5.743
2010	5.2