Year	Percent
1995	6.89
1996	7.693
1997	7.263
1998	7.277
1999	7.616
2000	7.073
2001	6.613
2002	6.995
2003	6.859
2004	6.092
2005	6.051
2006	5.405
2007	5.416
2008	4.914
2009	5.762
2010	6.19