Year	% of working-age population
1960	51.03160582367193
1961	51.227477608637415
1962	50.99244664189983
1963	50.45436445347391
1964	49.96010610350346
1965	49.27478016785429
1966	48.23103295467977
1967	46.99359941117469
1968	45.71143077566893
1969	44.518205013347114
1970	43.47060200083939
1971	42.44831639331785
1972	41.53058237922211
1973	40.949183457992724
1974	40.769762456975165
1975	40.75938862567533
1976	40.75712707355795
1977	40.890022230770576
1978	41.047798430049745
1979	41.142170606770954
1980	41.123048110748364
1981	41.007753805490644
1982	40.968389680774266
1983	41.00968507382052
1984	41.11982347156015
1985	41.245655338128394
1986	41.28668453686796
1987	41.129916565916034
1988	40.71493246307213
1989	40.029702274971186
1990	39.148539798028466
1991	38.26897889589911
1992	37.36898648584203
1993	36.39741514878981
1994	35.31180970826159
1995	34.157056100357615
1996	33.042727384401935
1997	31.94008992737864
1998	30.826590170095976
1999	29.697489174770137
2000	28.544674635843982
2001	27.376843191736818
2002	26.278477482082597
2003	25.280371074093626
2004	24.40194922194064
2005	23.635652670352787
2006	22.91902993540067
2007	22.293832096683673
2008	21.798579587055205
2009	21.522593214029946
2010	21.447766955886635
2011	21.442970316422095
2012	21.45860615630604
2013	21.50304780029622
2014	21.59804207080577
2015	21.74676721825588
2016	22.034635753770644
2017	22.45105572134228
2018	22.878363915704366
2019	23.252457295221348
2020	23.52747372633711
2021	23.74189352003052
2022	23.39317234889684
2023	23.177810735702316