Year	% of relevant age group
1975	73.7817916870117
1976	73.2478790283203
1977	72.5725631713867
1978	72.7575607299805
1979	73.479621887207
1980	72.8587036132812
1981	74.4269027709961
1982	74.778450012207
1983	73.8860397338867
1984	72.9110794067383
1985	73.9000396728516
1986	75.1075134277344
1987	73.1274490356445
1988	72.6288986206055
1989	70.7983016967773
1990	72.4701538085938
1991	71.8480682373047
1992	71.6187591552734
1993	71.3278884887695
1994	71.7717437744141
1995	71.961051940918
1996	72.8130569458008
1997	73.8601379394531
1998	75.9170227050781
1999	76.9490585327148
2000	76.4204025268555
2001	76.5867614746094
2002	77.2708969116211
2003	77.7483825683594
2004	77.2989273071289
2005	77.1360931396484
2006	78.8684692382812
2007	79.5521392822266
2008	80.2393112182617
2009	80.6952667236328
2010	81.2033920288086
2011	81.1545715332031
2012	82.9970932006836
2013	82.7605972290039
2014	82.9165115356445
2015	83.2480163574219
2016	83.5290069580078
2017	83.3184967041016
2018	83.2872467041016
2019	83.5003662109375
2020	83.1923904418945
2021	83.5928268432617