Year	Percent
1995	4.919
1996	4.664
1997	5.161
1998	5.487
1999	6.51
2000	6.062
2001	5.06
2002	4.823
2003	6.347
2004	7.816
2005	8.207
2006	8.992
2007	7.006
2008	6.587
2009	6.733
2010	6.593