Year	Measure
1965	0.00064
1966	0.00085
1967	0.00069
1968	0.00075
1969	0.00079
1970	0.00073
1971	0.0008
1972	0.00091
1973	0.00083
1974	0.00066
1975	0.00133
1976	0.00134
1977	0.00121
1978	0.00111
1979	0.00118
1980	0.0009
1981	0.00135
1982	0.00128
1983	0.00125
1984	0.00147
1985	0.00126
1986	0.00126
1987	0.00139
1988	0.00139
1989	0.00131
1990	0.00147
1991	0.00161
1992	0.00131
1993	0.00138
1994	0.00134
1995	0.00136
1996	0.00173
1997	0.0018
1998	0.0013
1999	0.00152
2000	0.0015
2001	0.00157
2002	0.00164
2003	0.00145
2004	0.00174
2005	0.00172
2006	0.00159
2007	0.0018
2008	0.00183
2009	0.00196
2010	0.00162
2011	0.00192