Year	% of relevant age group
1970	53.1002311706543
1971	53.0683517456055
1972	52.687931060791
1973	52.782958984375
1974	52.5173110961914
1975	53.4828414916992
1976	54.0703887939453
1977	54.7089805603027
1978	55.9810485839844
1979	56.0147590637207
1980	56.4387893676758
1981	57.1336097717285
1982	57.3883209228516
1983	57.5675888061523
1984	57.5705604553223
1985	57.4297904968262
1986	57.847469329834
1987	57.9743118286133
1988	57.8593292236328
1989	57.4467697143555
1990	57.7525291442871
1991	57.9137916564941
1992	58.0184516906738
1993	58.169490814209
1994	58.1559295654297
1995	57.9077606201172
1996	58.6667518615723
1997	58.7921600341797
1998	59.0864410400391
1999	59.4930992126465
2000	60.1111602783203
2001	60.8312492370605
2002	61.0542984008789
2003	61.2008781433105
2004	61.9129981994629
2005	63.7175216674805
2006	67.3274917602539
2007	64.2500915527344
2008	61.1361618041992
2009	63.819580078125
2010	64.7975234985352
2011	66.0983581542969
2012	66.9005737304688
2013	67.3384170532227
2014	67.7659225463867
2015	68.662712097168
2016	69.2302780151367
2017	68.635368347168
2018	68.5972900390625
2019	68.489990234375
2020	68.6600494384766
2021	69.1814117431641
2022	68.2491226196289