Year	Percent
1995	5.525
1996	5.338
1997	5.653
1998	5.835
1999	5.928
2000	6.348
2001	6.196
2002	6.341
2003	5.951
2004	5.333
2005	5.48
2006	5.561
2007	5.37
2008	5.713
2009	5.861
2010	6.224