Year	Percent
1995	9.749
1996	9.997
1997	9.747
1998	8.252
1999	7.294
2000	9.949
2001	9.033
2002	9.319
2003	11.99
2004	11.66
2005	11.55
2006	12.99
2007	13.11
2008	14.27
2009	13.32
2010	12.7