Year	% of relevant age group
1971	104.74234
1972	103.06656
1975	101.54817
1976	102.32588
1977	102.93066
1978	106.71466
1979	105.42034
1980	103.5702
1986	108.62079
1987	114.06146
1988	112.18028
1989	107.84394
1990	99.3835
1991	99.27501
1992	100.19617
1999	96.57721
2000	96.48031