Year	% of working-age population
1960	83.15078017256118
1961	83.99303565918808
1962	84.85317011793308
1963	85.74570460928466
1964	86.58613413865861
1965	87.93133665680013
1966	89.64846913980237
1967	90.81123361144219
1968	91.31377851995717
1969	91.26704620680525
1970	90.78377752822473
1971	88.9489656526327
1972	85.49271813181363
1973	81.49421141592232
1974	77.52668210413073
1975	73.78234236430683
1976	70.41757542711741
1977	67.50168650635561
1978	65.01047172633888
1979	62.88937333796901
1980	61.07744795785097
1981	59.74926353570582
1982	58.80950543626151
1983	57.972134410490575
1984	57.2397884550467
1985	56.64329864191387
1986	56.19331783645005
1987	55.91873972383002
1988	55.847292308188365
1989	55.9560136771531
1990	56.15404812419459
1991	56.3258394160584
1992	56.1743730142635
1993	55.553386634566635
1994	54.626110980790784
1995	53.49905336231681
1996	52.195780176643765
1997	50.73004332683585
1998	49.218387693017746
1999	47.78924891901991
2000	46.49294759600535
2001	45.29074822379665
2002	44.060278909312125
2003	42.225743196691504
2004	39.541954570492415
2005	36.827860744822225
2006	34.566910582626534
2007	32.690284513396776
2008	31.087394114695556
2009	29.604347931194386
2010	29.175314570840438
2011	29.44575744986698
2012	28.834624899030693
2013	28.66087644640783
2014	29.661865082269077
2015	30.110677985043623
2016	29.815948547369352
2017	29.462062493668345
2018	29.416176717548286
2019	29.897876949853035
2020	30.71222182705459
2021	31.34714607322511
2022	31.47910329664049
2023	31.424337463450453