Year	Percent
1995	8.365
1996	8.455
1997	8.685
1998	8.708
1999	9.549
2000	9.412
2001	9.617
2002	10.19
2003	9.768
2004	9.982
2005	9.912
2006	9.881
2007	10.8
2008	11.71
2009	11.94
2010	11.94