Year	Percent
1995	4.494
1996	4.75
1997	4.682
1998	5.399
1999	4.657
2000	4.463
2001	4.785
2002	4.674
2003	5.737
2004	5.332
2005	4.88
2006	5.257
2007	5.313
2008	5.377
2009	5.517
2010	5.185