Year	Measure
1995	8.69
1996	8.71
1997	9.03
1998	9
1999	9
2000	8.9
2001	8.8
2002	9
2003	8.9
2004	8.7
2005	8.6
2006	8.7
2007	9
2008	8.9
2009	8.9
2010	8.8
2011	8.8945