Year	% of relevant age group
1974	26.0750999450684
1975	30.6905193328857
1976	32.4480590820312
1977	36.6552391052246
1978	38.2388305664062
1979	31.697229385376
1980	44.3045082092285
1981	42.3386497497559
1982	46.6747703552246
1983	45.9281311035156
1984	47.597541809082
1985	45.9335784912109
1986	42.9978103637695
1987	38.7760810852051
1988	38.071891784668
1989	36.7114295959473
1990	36.1002006530762
1991	36.7438507080078
1992	24.6459197998047
1993	41.7660789489746
1994	28.9283599853516
1995	57.093921661377
1996	54.3152694702148
1999	38.2740211486816
2005	21.9541301727295
2006	23.9935703277588
2007	22.539400100708
2008	24.0247402191162
2009	23.9852199554443
2010	22.4043407440186
2011	22.7448101043701
2012	21.5194702148438
2013	23.2989101409912
2014	25.0639991760254
2015	25.6539993286133
2021	21.0550003051758
2022	22.5400009155273