Year	Measure
1971	0.00706
1972	0.01241
1973	0.01214
1974	0.01295
1975	0.01259
1976	0.01313
1977	0.00782
1978	0.00913
1979	0.01204
1980	0.01363
1981	0.01277
1982	0.01066
1983	0.00616
1984	0.0056
1985	0.00614
1986	0.00666
1987	0.00893
1988	0.00844
1989	0.01142
1990	0.00841
1991	0.00687
1992	0.00511
1993	0.00937
1994	0.00726
1995	0.00755
1996	0.00783
1997	0.00725
1998	0.00518
1999	0.00677
2000	0.00356
2001	0.00329
2002	0.00499
2003	0.00483
2004	0.00515
2005	0.00686
2006	0.00482
2007	0.00473
2008	0.00815
2009	0.00447
2010	0.00749