Year	Percent
1995	9.95
1996	9.052
1997	10.19
1998	10.12
1999	9.579
2000	9.589
2001	9.522
2002	7.991
2003	6.278
2004	5.574
2005	5.471
2006	6.872
2007	6.501
2008	5.732
2009	5.442
2010	8.203