Year	% of relevant age group
1973	20.857479095459
1974	21.3230094909668
1976	27.6802406311035
1977	30.2758903503418
1978	32.1987991333008
1979	34.1618690490723
1980	37.6399002075195
1981	42.3061790466309
1983	41.8274993896484
1984	40.7498397827148
1985	36.8137397766113
1986	35.7885284423828
1987	36.5464286804199
1988	34.0583686828613
1989	31.5786800384521
1990	29.5753898620605
1991	30.841869354248
1992	29.0198402404785
1993	30.4232807159424
1994	31.7311992645264
1995	31.1339797973633
1996	32.7385406494141
1997	31.5510406494141
1998	34.0277900695801
2000	33.3517189025879
2001	37.4980316162109
2006	32.5994987487793
2007	35.8385810852051
2009	37.3548583984375
2011	46.7068214416504
2012	45.870849609375
2013	46.2720108032227
2014	47.547290802002
2015	53.0774688720703
2016	56.6850814819336
2017	61.946720123291
2018	65.8000793457031
2019	70.6708908081055
2020	73.6503372192383
2021	72.1432189941406
2022	68.1644821166992
2023	76.0289993286133