Year	Percent
1995	4.21
1996	6.076
1997	5.894
1998	6.464
1999	6.024
2000	6.255
2001	6.607
2002	5.603
2003	7.348
2004	6.858
2005	6.898
2006	6.668
2007	6.719
2008	7.259
2009	7.457
2010	8.467