Year	% of relevant age group
1971	17.9412002563477
1972	21.3479995727539
1973	21.641809463501
1974	24.3063201904297
1975	25.8644504547119
1977	29.2954502105713
1978	30.6063098907471
1979	32.2361488342285
1980	34.4692916870117
1981	35.3696517944336
1982	34.0759696960449
1983	34.9505996704102
1984	36.8744010925293
1985	39.4576301574707
1986	43.3728485107422
1987	44.1178588867188
1988	45.1209602355957
1989	44.4021606445312
1990	42.0000495910645
1991	41.1053581237793
1992	43.2009506225586
1993	42.9472885131836
1994	42.9054794311523
1999	46.8847885131836
2000	46.1156005859375
2001	46.2099609375
2002	48.0103797912598
2003	51.6391181945801
2004	56.2135314941406
2005	60.5556106567383
2006	61.6734504699707
2007	63.2440910339355
2008	66.8653869628906
2009	68.1147003173828
2010	69.8275604248047
2011	70.1857528686523
2012	71.6114120483398
2013	51.8363990783691
2020	43.7040100097656
2021	46.4840393066406
2022	46.7808418273926
2023	46.0052108764648