Year	Percent
1995	9.516
1996	6.507
1997	10.54
1998	19.32
1999	9.947
2000	8.379
2001	10.84
2002	10.56
2003	10.95
2004	13.62
2005	16.07
2006	17.93
2007	15.43
2008	13.8
2009	11.87
2010	9.12