Year	Percent
1995	11.84
1996	14.93
1997	13.8
1998	16.16
1999	16.93
2000	17.7
2001	16.05
2002	14.11
2003	13.56
2004	13.65
2005	11.76
2006	11.76
2007	11.17
2008	12.61
2009	10.37
2010	11.49