Year	% of relevant age group
1970	23.1316108703613
1971	23.0378494262695
1972	23.2627792358398
1973	23.3587303161621
1974	23.3913402557373
1975	23.3899002075195
1976	23.4523296356201
1977	23.6414909362793
1978	23.7536792755127
1979	23.7887401580811
1980	23.9908294677734
1981	24.1318397521973
1982	24.3225803375244
1983	24.4982109069824
1984	24.7434902191162
1985	24.9512500762939
1986	25.0418300628662
1987	24.7654094696045
1988	24.6177196502686
1989	24.5136909484863
1990	24.5373706817627
1991	24.7386302947998
1992	24.5742301940918
1993	25.0104694366455
1994	25.2336292266846
1995	26.2089405059814
1996	26.5482406616211
1997	26.744140625
1998	27.0285396575928
1999	27.107250213623
2000	27.3667392730713
2001	28.5106105804443
2002	30.7264194488525
2003	31.2014102935791
2004	31.7151203155518
2005	32.8079795837402
2006	34.0712013244629
2007	35.5188598632812
2008	37.3418006896973
2009	38.5921401977539
2010	39.8223991394043
2011	40.7577896118164
2012	41.2583084106445
2013	41.7088508605957
2014	42.3889007568359
2015	43.0759582519531
2016	43.2805099487305
2017	43.4545402526855
2018	43.6674613952637
2019	43.8217887878418
2020	44.3522186279297
2021	44.8440895080566