Year	Percent
1995	9.802
1996	9.453
1997	9.168
1998	10.43
1999	9.381
2000	7.882
2001	10.44
2002	10.69
2003	9.537
2004	11.13
2005	11.87
2006	9.88
2007	10.51
2008	10.12
2009	9.532
2010	9.532