Year	Percent
1995	7.371
1996	7.06
1997	6.483
1998	7.623
1999	7.155
2000	6.622
2001	6.518
2002	5.664
2003	5.674
2004	5.064
2005	5.035
2006	6.424
2007	8.677
2008	7.85
2009	7.79
2010	7.79