Year	Percent
1995	7.911
1996	6.824
1997	5.287
1998	4.327
1999	6.401
2000	5.788
2001	6.558
2002	8.836
2003	8.272
2004	8.345
2005	10.92
2006	8.255
2007	8.267
2008	8.802
2009	9.581
2010	9.282