Year	% of relevant age group
1975	26.7440490722656
1976	26.848180770874
1977	27.1003894805908
1978	27.2479991912842
1979	27.2338600158691
1980	27.5217399597168
1981	27.7713394165039
1982	27.9456195831299
1983	28.0530109405518
1984	28.2089996337891
1985	28.3329792022705
1986	28.2885303497314
1987	27.9762802124023
1988	27.8628997802734
1989	27.7144203186035
1990	27.8006000518799
1991	27.9044208526611
1992	27.6165904998779
1993	28.0873508453369
1994	28.2445201873779
1995	29.2972297668457
1996	29.5607109069824
1997	29.7522506713867
1998	30.065149307251
1999	30.0079402923584
2000	30.1643199920654
2001	31.4638900756836
2002	33.9329109191895
2003	34.5328788757324
2004	35.1931991577148
2005	36.3634986877441
2006	37.6769104003906
2007	39.1959991455078
2008	41.1968688964844
2009	42.3142585754395
2010	43.3794593811035
2011	44.1747894287109
2012	44.4006881713867
2013	44.6106796264648
2014	45.4975891113281
2015	45.8714218139648
2016	45.7950706481934
2017	45.6718902587891
2018	45.641788482666
2019	45.5511093139648
2020	45.8433494567871
2021	46.3983497619629