Year	% of relevant age group
1970	26.6473598480225
1971	28.9254894256592
1972	30.2980308532715
1973	31.4181709289551
1974	33.9798011779785
1975	35.4798316955566
1976	36.2669715881348
1977	36.9844284057617
1978	37.6773796081543
1979	39.3236618041992
1980	40.4259986877441
1981	40.5159683227539
1982	42.1760902404785
1983	43.3368797302246
1984	44.975528717041
1985	45.565601348877
1986	46.7258682250977
1987	47.4409217834473
1988	48.4940605163574
1989	49.5568084716797
1990	50.0913391113281
1991	50.6909484863281
1992	51.6107292175293
1993	52.0661010742188
1994	53.1462097167969
1995	54.1398696899414
1996	55.4016609191895
1997	56.8487205505371
1998	57.6476287841797
1999	58.2153205871582
2000	59.0904083251953
2001	59.9974784851074
2002	61.6566390991211
2003	62.546760559082
2004	63.6625785827637
2005	65.2278137207031
2006	65.8574066162109
2007	66.6296615600586
2008	67.6625289916992
2009	68.8594131469727
2010	69.5832290649414
2011	69.6232528686523
2012	69.122802734375
2013	69.0741119384766
2014	69.0854721069336
2015	71.1175231933594
2016	72.3499298095703
2017	72.3157196044922
2018	71.7343597412109
2019	71.9802627563477
2020	72.2269668579102
2021	73.9600219726562
2022	73.8959503173828