Year	Percent
1995	5.15
1996	4.678
1997	4.804
1998	4.89
1999	5.102
2000	5.071
2001	5.452
2002	5.62
2003	5.782
2004	5.976
2005	5.871
2006	5.683
2007	5.836
2008	5.869
2009	6.458