Year	Percent
1995	5.191
1996	7.412
1997	7.758
1998	8.607
1999	7.623
2000	7.956
2001	8.072
2002	7.142
2003	6.624
2004	6.876
2005	6.777
2006	7.657
2007	7.276
2008	6.785
2009	7.471
2010	7.015