Year	% of working-age population
1960	93.38610120383106
1961	95.52510061722471
1962	97.4358460145187
1963	99.11244381001134
1964	100.06291337708333
1965	100.43139117437943
1966	100.64376576097918
1967	100.72181438587167
1968	100.57202172201447
1969	100.16728392952143
1970	99.5501536895419
1971	98.75213381567762
1972	97.8745644041955
1973	96.94217112729432
1974	95.87390094302889
1975	94.7140263733937
1976	93.50507227732278
1977	92.21465320544412
1978	90.91839904106729
1979	89.69124452740284
1980	88.53267640599198
1981	87.44771349289869
1982	86.41644271490901
1983	85.44291811021839
1984	84.49052342502583
1985	83.4752650154908
1986	82.41169700941451
1987	81.28432672697554
1988	80.03942249161685
1989	78.70600776821604
1990	77.31835700831347
1991	75.98363135115301
1992	74.70568378122368
1993	73.36023965796544
1994	71.90427755831392
1995	70.2946574349147
1996	68.58414470300501
1997	66.88652319616438
1998	65.26171329160972
1999	63.72279183966983
2000	62.24488804475244
2001	60.82007174452053
2002	59.46881239238564
2003	58.214228354369965
2004	56.98265979464644
2005	55.74104509165936
2006	54.60363548186253
2007	53.63265351899068
2008	52.81283888977717
2009	52.17017974556525
2010	51.713888054078694
2011	51.42283957136784
2012	51.233147896218455
2013	51.11502310164572
2014	51.105228723306396
2015	51.189766628518065
2016	51.295387251351045
2017	51.45349355203588
2018	51.686189225270226
2019	51.91910582651179
2020	52.07488651824479
2021	52.15478702830697
2022	52.218083024383525
2023	52.23619788767693
