Year	% of relevant age group
1970	26.9614601135254
1971	29.1409492492676
1972	30.4400501251221
1973	31.5530605316162
1974	34.0550918579102
1975	35.5757102966309
1976	36.4014282226562
1977	37.182991027832
1978	38.5402488708496
1979	40.5260810852051
1980	41.964771270752
1981	42.0326881408691
1982	43.7456016540527
1983	44.6951293945312
1984	46.231559753418
1985	46.7290306091309
1986	48.0017013549805
1987	48.5237312316895
1988	49.5722007751465
1989	50.6268615722656
1990	51.0967712402344
1991	51.6712799072266
1992	52.4018402099609
1993	52.745849609375
1994	53.7760391235352
1995	54.6872406005859
1996	55.9062995910645
1997	57.4169006347656
1998	58.2163887023926
1999	58.7835807800293
2000	59.8243408203125
2001	60.5796012878418
2002	62.2899284362793
2003	63.211311340332
2004	64.2958984375
2005	65.8962783813477
2006	66.443603515625
2007	67.1640396118164
2008	68.1828918457031
2009	69.3441009521484
2010	70.0449066162109
2011	69.9891128540039
2012	69.5686721801758
2013	69.5053024291992
2014	69.4999465942383
2015	71.4450912475586
2016	72.6398086547852
2017	72.6430816650391
2018	72.0752868652344
2019	72.2998123168945
2020	72.5267715454102
2021	74.1959762573242
2022	74.1250762939453