Year	Percent
1995	5.262
1996	5.622
1997	5.704
1998	7.027
1999	6.806
2000	6.779
2001	6.278
2002	6.701
2003	7.18
2004	8.584
2005	7.97
2006	8.138
2007	7.823
2008	7.054
2009	5.945
2010	5.767