Year	% of working-age population
1960	38.660109557023915
1961	38.982032965749866
1962	39.05337264981746
1963	39.05622086198057
1964	39.11702997315258
1965	39.23064134966888
1966	39.3617869274481
1967	39.485224822905366
1968	39.55676126433058
1969	39.57512038829741
1970	39.50509522357806
1971	39.34917655997737
1972	39.11002669724009
1973	38.76327193718012
1974	38.30966032598655
1975	37.754194536381426
1976	37.11114072873389
1977	36.41885787477805
1978	35.65969108880695
1979	34.80479481752368
1980	33.89883036319267
1981	32.95948002120361
1982	32.03511044789952
1983	31.16232529770439
1984	30.351671542744697
1985	29.669810236089766
1986	29.075606958312225
1987	28.525610363143663
1988	28.064020170717164
1989	27.65838681825734
1990	27.29360314455575
1991	26.894944899370138
1992	26.521180172650844
1993	26.234940402017422
1994	25.923486507400426
1995	25.590797313619273
1996	25.264299066942407
1997	24.96633858717542
1998	24.71319097699102
1999	24.511739789595087
2000	24.348145343061876
2001	24.189406406756515
2002	24.025077760890415
2003	23.84963070967318
2004	23.674439782723116
2005	23.52687016522012
2006	23.402759893041623
2007	23.288916214720622
2008	23.23422939686803
2009	23.25544999975314
2010	23.279617432552925
2011	23.310817943358366
2012	23.3395903356268
2013	23.363034748208626
2014	23.375881905701483
2015	23.364389200132816
2016	23.352461622981046
2017	23.361489549393557
2018	23.346654938780098
2019	23.299260211668173
2020	23.223857479076752
2021	23.12787350205895
2022	23.00315069132447
2023	22.855942210886656