Year	Percent
1995	4.861
1996	4.693
1997	4.971
1998	5.024
1999	4.51
2000	5.584
2001	5.643
2002	5.748
2003	5.562
2004	7.594
2005	9.213
2006	5.99
2007	5.282
2008	6.001
2009	6.198
2010	5.383