Year	% of relevant age group
1979	58.0900115966797
1980	57.8983497619629
1981	56.9944000244141
1982	56.6696510314941
1983	56.5696105957031
1984	57.4432411193848
1985	55.5939407348633
1986	55.2215194702148
1987	56.2258796691895
1988	57.2344512939453
1989	58.178150177002
1990	59.0195007324219
1991	59.8838195800781
1992	60.6204414367676
1993	61.5302581787109
1994	61.8573989868164
1995	61.6793785095215
1996	61.5706596374512
1997	62.0837783813477
1998	61.9533500671387
1999	62.6421203613281
2000	63.3391494750977
2001	66.0430908203125
2002	67.8322601318359
2003	68.6845779418945
2004	68.6886901855469
2005	69.0984115600586
2006	68.8917083740234
2007	70.3366394042969
2008	71.6718368530273
2009	72.5055465698242
2010	75.0506896972656
2011	77.1596298217773
2012	75.2616271972656
2013	76.9154586791992
2014	77.1281585693359
2015	77.1572113037109
2016	76.4807205200195
2017	76.2693099975586
2018	76.1905517578125
2019	77.9989013671875
2020	78.8991165161133
2021	79.9683074951172