Year	% of relevant age group
1971	61.0152206420898
1972	61.9356117248535
1973	62.5505104064941
1974	64.3740692138672
1975	64.4670715332031
1976	63.5216407775879
1977	62.1924781799316
1978	62.8530311584473
1979	63.846321105957
1980	63.8769989013672
1981	65.9446334838867
1982	66.2771072387695
1983	65.4632263183594
1984	64.3461532592773
1985	66.8781127929688
1986	69.0607986450195
1987	66.3254165649414
1988	65.8385772705078
1989	63.4624290466309
1990	66.1282501220703
1991	65.7815780639648
1992	65.6497421264648
1993	65.1628112792969
1994	66.0422821044922
1995	66.603141784668
1996	68.0351104736328
1997	69.3090591430664
1998	71.9842224121094
1999	72.9909591674805
2000	72.8904418945312
2001	73.7879333496094
2002	74.1842880249023
2003	74.8856582641602
2004	74.119743347168
2005	73.8940887451172
2006	76.192253112793
2007	76.6509628295898
2008	77.9438323974609
2009	78.4367523193359
2010	79.0128402709961
2011	78.8497695922852
2012	79.7761917114258
2013	80.0339431762695
2014	80.5705184936523
2015	81.3361587524414
2016	81.6561737060547
2017	81.6059036254883
2018	82.0431594848633
2019	82.1551513671875
2020	82.2887115478516
2021	82.6819381713867