Year	% of relevant age group
1970	76.4418029785156
1971	80.8101425170898
1972	63.3935890197754
1973	65.7283935546875
1974	67.7566223144531
1975	67.7146987915039
1976	65.254020690918
1977	65.4124526977539
1978	67.2868423461914
1979	69.4255828857422
1980	71.6910629272461
1981	72.2169189453125
1982	73.5881576538086
1984	76.2355117797852
1985	76.2078323364258
1987	81.3498229980469
1992	93.0722274780273
1993	92.2810897827148
1994	89.6515808105469