Year	Percent
1995	9.628
1996	9.332
1997	9.559
1998	10
1999	10
2000	9.985
2001	10
2002	10.74
2003	9.92
2004	12.51
2005	11.18
2006	11.34
2007	10.02
2008	18.15
2009	17.29
2010	14.93