Year	% of relevant age group
1970	28.2394504547119
1971	28.2390003204346
1972	29.2273693084717
1973	29.641450881958
1974	29.609260559082
1975	30.6835708618164
1976	31.4957904815674
1977	32.7373390197754
1978	35.5482292175293
1979	36.3814315795898
1980	37.1781387329102
1981	37.6224899291992
1982	37.9162483215332
1983	38.6972389221191
1984	39.9830894470215
1985	41.8127899169922
1986	43.853588104248
1987	44.6279296875
1988	47.0564613342285
1989	48.6175003051758
1990	50.0488395690918
1991	50.2605094909668
1992	51.956729888916
1993	53.4217491149902
1994	55.7859992980957
1995	56.7443504333496
1996	57.6711883544922
1997	58.0395011901855
1998	59.0757484436035
1999	60.1098403930664
2000	61.2244300842285
2001	62.6049880981445
2002	64.5668334960938
2003	66.4821624755859
2004	66.3738174438477
2005	66.8990478515625
2006	65.1482467651367
2007	65.2311325073242
2008	65.1222381591797
2009	66.8564300537109
2010	66.126953125
2011	68.3101119995117
2012	73.1536636352539
2013	69.0430908203125
2014	67.6814804077148
2015	67.4478225708008
2016	67.3457183837891
2017	66.7011108398438
2018	67.0606079101562
2019	67.98095703125
2020	68.6000823974609
2021	71.5730209350586
2022	70.6199417114258