Year	Measure
1995	5.24
1996	3.41
1997	2.81
1998	3
1999	3
2000	3.5
2001	3.5
2002	2.8
2003	2.5
2004	2.5
2005	2.8
2006	2.9
2007	2.9
2008	2.9
2009	2.9
2010	2.9
2011	2.99607