Year	Measure
1996	0.69
1997	1.76
1998	1.9
1999	1.6
2000	1.2
2001	1
2002	1.6
2003	1.4
2004	1.6
2005	1.9
2006	2.2
2007	2.2
2008	2.7
2009	2.5
2010	2.4
2011	2.44934