Year	% of relevant age group
1970	27.8646392822266
1971	30.0983009338379
1972	31.4166793823242
1973	32.6786193847656
1974	35.4304504394531
1975	36.9790382385254
1984	48.0821800231934
1985	48.5713691711426
1986	49.9051818847656
1987	50.4693298339844
1988	51.5422286987305
1989	52.6102485656738
1990	53.1199684143066
1991	53.7367782592773
1992	54.5110397338867
1993	54.8618392944336
1994	55.8761596679688
1995	56.8450889587402
1996	57.9716491699219
1997	59.3942718505859
1998	60.2938499450684
1999	60.8704414367676
2000	62.0030708312988
2001	62.7835388183594
2002	64.5968704223633
2003	65.5707702636719
2004	66.7440795898438
2005	68.5873336791992
2006	69.1809463500977
2007	70.0288696289062
2008	71.0820007324219
2009	71.9056701660156
2010	72.7046508789062
2011	72.5867919921875
2012	72.0177230834961
2013	72.198600769043
2014	71.9553298950195
2015	73.9194183349609
2016	75.3141708374023
2017	75.3489608764648
2018	74.5220489501953
2019	74.7818069458008
2020	75.003776550293
2021	76.0149612426758
2022	76.087043762207