Year	Percent
1995	10.67
1996	11.5
1997	9.354
1998	11.58
1999	10.27
2000	9.888
2001	11.02
2002	11.39
2003	10.91
2004	10.03
2005	8.024
2006	7.336
2007	6.702
2008	7.05
2009	8.52
2010	8.147