Year	% of relevant age group
1970	66.1828308105469
1971	65.9941329956055
1972	65.2600936889648
1973	66.0753021240234
1974	66.6408081054688
1975	67.6205673217773
1976	67.8041000366211
1977	69.5892181396484
1978	73.6616287231445
1979	74.5578308105469
1980	76.6862030029297
1981	78.3426513671875
1982	78.4636535644531
1983	76.5194625854492
1984	76.9873199462891
1985	79.1754684448242
1986	79.6962432861328
1987	81.5962905883789
1988	82.8571319580078
1989	83.8870086669922
1990	84.8579483032227
1991	86.8492736816406
1992	84.048957824707
1993	82.395149230957
1994	82.1559677124023
1995	81.9108734130859
1996	81.1294784545898
1997	80.8678512573242
1998	80.8211669921875
1999	80.7871932983398
2000	82.4119873046875
2001	79.4930877685547
2002	81.4355392456055
2003	83.4713516235352
2004	85.1400985717773
2005	84.3287811279297
2006	85.5294876098633
2007	87.3867568969727
2008	87.3773803710938
2009	88.1112289428711
2010	88.067497253418
2011	88.6642913818359
2012	87.831298828125
2013	86.6128082275391
2014	86.7544174194336
2015	90.2451171875
2016	88.5462875366211
2017	86.823356628418
2018	83.8098297119141
2019	83.8192291259766
2020	83.01318359375
2021	83.2357406616211