Year	% of relevant age group
1973	51.7266082763672
1974	52.7765617370605
1975	53.7174110412598
1976	54.548469543457
1977	55.8419418334961
1978	57.0300598144531
1979	59.2969093322754
1980	59.6862106323242
1981	61.0363807678223
1982	62.087818145752
1983	62.0792617797852
1984	64.8945083618164
1985	60.8597984313965
1986	60.1446990966797
1987	58.6060905456543
1988	56.9598388671875
1989	55.2883110046387
1990	56.1182518005371
1991	56.4926910400391
1992	55.2988891601562
1993	56.2758712768555
1994	54.6611595153809
1995	54.987621307373
1996	55.0407905578613
1997	54.2554702758789
1998	52.816219329834
1999	52.5384101867676
2000	52.694019317627
2001	55.1231002807617
2002	57.1256904602051
2003	58.9056015014648
2004	60.2152786254883
2005	62.9677085876465
2006	64.6841812133789
2007	66.5497665405273
2008	69.446418762207
2009	72.467170715332
2010	71.6908264160156
2011	71.1104202270508
2012	70.1137084960938
2013	69.3123779296875
2014	68.9285125732422
2015	68.4018096923828
2016	68.1366806030273
2017	69.0948333740234
2018	70.6073608398438
2019	71.4658279418945
2020	72.7200317382812
2021	73.5724868774414