Year	% of working-age population
1960	75.33812256692218
1961	75.94854176593023
1962	76.07013978909013
1963	75.72209425302306
1964	74.9774467357294
1965	73.91305784468572
1966	72.60431626369736
1967	71.09270428684101
1968	69.44168852303349
1969	67.74117654747394
1970	66.05590213076238
1971	64.50307496401638
1972	63.18070797069043
1973	62.040059165810966
1974	61.011900315808035
1975	60.05547159643388
1976	59.16271084892617
1977	58.35143831667675
1978	57.61291715622906
1979	56.94226041505171
1980	56.33921258122645
1981	55.67690282367481
1982	54.899922154345504
1983	54.13329738222339
1984	53.48524750123246
1985	52.97808415099775
1986	52.566622732693155
1987	52.21066173434016
1988	51.89919950785112
1989	51.61773307404278
1990	51.38938128217547
1991	51.25969813088304
1992	51.06187550425123
1993	50.85630366577579
1994	50.73656130039127
1995	50.63570121673434
1996	50.49693219800439
1997	50.23168687764961
1998	49.88702906165056
1999	49.5209662097978
2000	49.228879284826235
2001	49.08434438763613
2002	49.02896131729884
2003	49.07235621521336
2004	49.253553377929514
2005	49.40058518646434
2006	49.30690425325306
2007	48.98519521989453
2008	48.63439583127555
2009	48.2829658799575
2010	47.78546547692895
2011	47.34142023785479
2012	47.22885163763694
2013	47.35164214790954
2014	47.757299825108355
2015	48.38358085434698
2016	48.9354624085163
2017	49.49928537970959
2018	50.2136504533735
2019	51.07814420269791
2020	51.911900261863956
2021	52.53356324670526
2022	53.01145082639813
2023	53.467080111082055