Year	% of relevant age group
1970	25.7109203338623
1971	25.7402000427246
1972	26.1391906738281
1973	26.9858303070068
1974	26.6870899200439
1975	26.8658905029297
1976	25.2276802062988
1977	25.6893291473389
1978	26.7354202270508
1979	27.672550201416
1980	27.9121494293213
1981	27.6535491943359
1982	26.7727699279785
1983	27.9406108856201
1984	28.3684997558594
1985	28.2968406677246
1986	28.5561103820801
1987	28.0038509368896
1988	28.2946491241455
1989	28.2003498077393
1990	28.3020992279053
1991	28.5402698516846
1992	28.5297794342041
1993	28.7075805664062
1994	28.7711200714111
1995	29.4524192810059
1996	29.5724792480469
1997	29.7643909454346
1998	30.0901508331299
1999	30.7038307189941
2000	31.7785892486572
2001	32.8210983276367
2002	33.8830795288086
2003	34.4653701782227
2004	34.5168914794922
2005	35.1618118286133
2006	36.3946685791016
2007	37.6157913208008
2008	39.3661499023438
2009	40.6560897827148
2010	41.4793090820312
2011	42.7089691162109
2012	43.9414405822754
2013	44.7821807861328
2014	46.1406707763672
2015	47.1856498718262
2016	47.8158493041992
2017	48.4371490478516
2018	49.7458000183105
2019	49.6785202026367
2020	49.8699684143066
2021	49.9407081604004