Year	% of relevant age group
1970	27.8997402191162
1971	31.3752403259277
1972	31.428150177002
1973	34.1939811706543
1977	37.0574913024902
1978	36.388240814209
1979	32.2676391601562
1980	36.9326591491699
1982	33.4834289550781
1983	32.5512008666992
1984	31.6060600280762
1985	34.7327613830566
1986	41.824348449707
1987	51.5102996826172
1988	52.7537117004395
1993	52.4470596313477
1994	57.7149810791016
1995	52.9591407775879
1999	67.9401702880859
2000	67.6256332397461
2001	68.9516830444336
2002	75.9323272705078
2003	74.9720611572266
2004	75.5268630981445
2005	78.8518295288086
2006	77.9877777099609
2007	78.314567565918
2008	77.5100936889648
2010	81.4674911499023
2022	81.8785629272461