Year	Percent
1995	4.698
1996	5.223
1997	5.453
1998	5.585
1999	6.281
2000	6.018
2001	5.757
2002	5.529
2003	5.146
2004	4.927
2005	4.951
2006	5.32
2007	5.866
2008	5.494
2009	5.444
2010	6.47