Year	Percent
1995	11.57
1996	10.81
1997	8.386
1998	11.5
1999	11.64
2000	11.58
2001	12.41
2002	13.86
2003	14.92
2004	11.54
2005	11.9
2006	12.87
2007	13.11
2008	12.85
2009	12.64
2010	12.64