Year	% of relevant age group
1974	17.5467205047607
1975	20.4016494750977
1976	21.6406192779541
1977	24.393030166626
1978	25.1146907806396
1979	21.6870708465576
1980	29.1068897247314
1981	27.9688396453857
1982	31.2316093444824
1983	31.1207695007324
1984	32.6475601196289
1985	32.283561706543
1986	30.4626502990723
1987	27.9561004638672
1988	27.5912094116211
1989	27.3201999664307
1990	27.3442306518555
1991	29.0772705078125
1992	21.6158790588379
1993	32.9975509643555
1994	23.8401107788086
1995	46.1449089050293
1996	44.4110984802246
1999	30.9905490875244
2005	18.3961791992188
2006	21.6668891906738
2007	19.4787292480469
2008	20.6390590667725
2009	21.4235095977783
2010	20.1400394439697
2011	20.3626403808594
2012	19.8208808898926
2013	21.7624797821045
2014	23.2999992370605
2015	23.8239994049072
2021	20.556999206543
2022	22.0340003967285