Year	Percent
1995	6.933
1996	8.426
1997	6.591
1998	5.886
1999	5.71
2000	5.354
2001	5.573
2002	5.151
2003	4.803
2004	5.921
2005	5.153
2006	4.274
2007	4.568
2008	3.099
2009	4.538
2010	4.216