Year	Measure
1990	0.00835
1991	0.02063
1992	0.02017
1993	0.02729
1994	0.0205
1995	0.01723
1996	0.01686
1997	0.0186
1998	0.02103
1999	0.01611
2000	0.01626
2001	0.01366
2002	0.02098
2003	0.02534
2004	0.02794
2005	0.03013
2006	0.02488
2007	0.02302
2008	0.02146
2009	0.0219
2010	0.03225