Year	Percent
1995	5.338
1996	4.962
1997	4.884
1998	5.633
1999	5.695
2000	5.378
2001	5.45
2002	6.072
2003	6.397
2004	6.468
2005	5.831
2006	5.723
2007	5.905
2008	6.048
2009	6.996