Year	% of relevant age group
1971	98.94164
1972	97.64313
1973	96.28005
1974	95.76872
1975	97.00255
1976	103.79645
1977	103.53405
1978	101.83811
1979	100.69478
1980	96.03043
1981	93.1864
1982	93.50867
1983	93.14427
1984	95.69419
1985	101.94814