Year	Percent
1995	8.304
1996	8.435
1997	7.707
1998	7.681
1999	6.873
2000	4.611
2001	6.73
2002	6.187
2003	6.757
2004	6.758
2005	6.789
2006	7.422
2007	6.806
2008	7.243
2009	6.618
2010	6.422