Year	% of relevant age group
1970	20.8548603057861
1971	20.9170207977295
1972	21.2667293548584
1973	21.576530456543
1974	21.8601703643799
1975	22.0720100402832
1976	22.3056297302246
1977	22.7242107391357
1978	22.9646606445312
1979	23.1943092346191
1980	23.4034595489502
1981	23.6344509124756
1982	23.796329498291
1983	23.7641201019287
1984	23.7323207855225
1985	23.7427501678467
1986	23.9122295379639
1987	23.5824298858643
1988	23.5536193847656
1989	23.8206901550293
1990	24.853120803833
1991	25.579309463501
1992	25.8906402587891
1993	25.8746204376221
1994	25.7505397796631
1995	25.6458492279053
1996	25.4526100158691
1997	25.784049987793
1998	25.910270690918
1999	25.5422191619873
2000	25.4953594207764
2001	26.7914905548096
2002	30.1453304290771
2003	33.2582015991211
2004	34.6028518676758
2005	35.7697715759277
2006	36.8680610656738
2007	38.3266487121582
2008	40.4325714111328
2009	41.661678314209
2010	42.6933708190918
2011	43.2864685058594
2012	43.6000900268555
2013	43.7749481201172
2014	43.3957405090332
2015	44.4629211425781
2016	45.032169342041
2017	45.2076110839844
2018	45.497371673584
2019	45.0924606323242
2020	45.0903587341309
2021	44.9680099487305
2022	44.3213500976562