Year	Percent
1995	6.33
1996	6.032
1997	6.271
1998	6.023
1999	5.668
2000	5.642
2001	2.977
2002	3.93
2003	5.089
2004	3.747
2005	3.72
2006	3.241
2007	8.517
2008	8.135
2009	8.066
2010	7.448