Year	% of relevant age group
1972	40.2040481567383
1973	40.6638412475586
1974	41.1877403259277
1975	41.9654006958008
1976	42.6534385681152
1977	43.6842498779297
1978	44.9105415344238
1979	46.4820899963379
1980	47.1929092407227
1981	48.400520324707
1982	49.058219909668
1983	49.8269081115723
1984	51.9337387084961
1985	50.0737113952637
1986	50.1576194763184
1987	49.5102691650391
1988	48.605411529541
1989	47.6011390686035
1990	48.4695091247559
1991	49.18994140625
1992	48.6875686645508
1993	49.6164588928223
1994	48.9467506408691
1995	49.086540222168
1996	49.5197410583496
1997	49.204891204834
1998	48.5754699707031
1999	48.6453514099121
2000	48.4967308044434
2001	49.8203086853027
2002	50.7710914611816
2003	51.8342895507812
2004	52.6398086547852
2005	54.9607582092285
2006	57.7105484008789
2007	57.8718910217285
2008	59.5033493041992
2009	63.2332000732422
2010	63.9568481445312
2011	63.6756286621094
2012	64.6077728271484
2013	64.7338104248047
2014	65.0721588134766
2015	65.4620971679688
2016	66.2422714233398
2017	66.6926116943359
2018	67.4798583984375
2019	67.7482986450195
2020	68.3398895263672
2021	69.0992279052734