Year	Percent
1995	6.379
1996	7.579
1997	8.144
1998	8.248
1999	7.971
2000	7.985
2001	7.82
2002	7.673
2003	7.312
2004	7.225
2005	7.131
2006	6.643
2007	6.281
2008	6.176
2009	6.791
2010	6.912