Year	% of working-age population
1960	14.397108447940656
1961	14.722564447152408
1962	14.991470982277391
1963	15.281812371405081
1964	15.657311163830482
1965	16.086832709640806
1966	16.535999936102787
1967	16.99394582589355
1968	17.423142419751056
1969	17.793710331361765
1970	18.101313899114942
1971	18.418924411153263
1972	18.818638507498132
1973	19.255517742996737
1974	19.704102311797232
1975	20.15941689287695
1976	20.575590705817344
1977	20.933740300214346
1978	21.2326844073517
1979	21.401296183343838
1980	21.216268533373867
1981	20.60129780269781
1982	19.786447926696074
1983	18.92879371500495
1984	18.34893184754759
1985	18.252508059031566
1986	18.399993676701374
1987	18.612274601401744
1988	18.829691371930615
1989	18.962694952118834
1990	19.006773094234553
1991	19.032359066494347
1992	19.069058893377935
1993	19.117993511347954
1994	19.184835831107115
1995	19.295843647194296
1996	19.44217485852338
1997	19.57030504567455
1998	19.653713894449606
1999	19.68927638638037
2000	19.68812885275462
2001	19.65400913472144
2002	19.601464473712586
2003	19.554363035676364
2004	19.577731814474742
2005	19.730243780051484
2006	19.988510398034986
2007	20.32840143295703
2008	20.816505757956577
2009	21.434835332540086
2010	22.0460381729838
2011	22.88037481306637
2012	24.005438519376384
2013	25.13084318052267
2014	26.16646397197081
2015	27.143620835110184
2016	28.12030085968102
2017	29.086544082010736
2018	29.987822881548503
2019	30.817048546727673
2020	31.570154223413944
2021	32.18625619529057
2022	32.558567082195566
2023	32.777319230041954