Year	% of working-age population
1960	63.49375851529992
1961	63.073008135909106
1962	62.05877238741089
1963	60.849772382397575
1964	59.783034897399034
1965	58.91140926824626
1966	58.18367916627896
1967	57.537566650508964
1968	56.87899597442576
1969	56.21221325465012
1970	55.38917926260771
1971	54.39866527161157
1972	53.24304456005429
1973	51.90874181161057
1974	50.53278457461803
1975	49.207511049801525
1976	47.99977744394369
1977	46.88488516022555
1978	45.829252366960496
1979	44.833898670112525
1980	43.98209112457203
1981	43.29480972460826
1982	42.642519036838856
1983	42.004773269689736
1984	41.43229558329573
1985	40.88995641838352
1986	40.34632881670988
1987	39.890697168282834
1988	39.599483204134366
1989	39.46669826973216
1990	39.48556381077777
1991	39.701287634917634
1992	40.06788736434479
1993	40.44008963905974
1994	40.7879435148926
1995	41.04912769423263
1996	41.27390630139561
1997	41.50021050661926
1998	41.675190626743536
1999	41.816498900844614
2000	41.926228567493744
2001	42.01904069437186
2002	42.061646155583155
2003	42.078930246124166
2004	42.07698994717251
2005	41.949330678172366
2006	41.622036874451275
2007	41.34971463425261
2008	41.3722899655628
2009	41.52399844753978
2010	41.925641807958854
2011	42.65449965752668
2012	43.42504260829146
2013	44.13916977115487
2014	44.677165004553224
2015	45.10977155949018
2016	45.858375886845316
2017	47.11857379767827
2018	48.546329219828486
2019	49.93782991202346
2020	51.405213270142184
2021	52.85868392664509
2022	54.117390461419156
2023	55.229828850855746