Year	% of relevant age group
1971	27.6785697937012
1972	30.9627990722656
1973	34.6043891906738
1974	33.7040214538574
1975	42.8906288146973
1976	50.3216590881348
1977	47.4233512878418
1978	50.4813499450684
1979	55.0951805114746
1980	50.2659606933594
1981	59.3637809753418
1982	58.560791015625
1983	72.2839202880859
1984	65.1129913330078
1985	71.3107223510742
1986	77.4425888061523
1987	67.0263290405273
1988	70.2746963500977
1989	69.2517471313477
1990	69.955322265625
1991	77.5634231567383
1992	74.7757110595703
1993	81.4740982055664
1994	78.6079177856445
1995	79.1896896362305
1996	75.1324310302734
2005	91.7331085205078
2006	94.2639770507812
2007	99.6402206420898
2008	97.535270690918
2009	95.3650512695312
2011	94.2528686523438
2013	97.1975479125977
2014	84.8880081176758
2015	87.5649032592773
2016	97.7397613525391
2017	95.8180694580078
2018	96.8365783691406
2019	98.5584182739258
2020	98.1879119873047