Year	% of relevant age group
1970	16.4520606994629
1971	22.0611705780029
1972	24.8816509246826
1973	26.2137794494629
1974	32.4308891296387
1975	35.1462287902832
1976	35.376651763916
1977	35.714241027832
1978	35.2683296203613
1979	35.6317596435547
1980	35.7586708068848
1981	34.4113502502441
1982	35.1949806213379
1984	36.9537887573242
1985	34.786060333252
1987	37.1231002807617
1992	46.5010986328125
1993	46.5658187866211
1994	47.0927391052246