Year	% of working-age population
1960	73.54197776671644
1961	73.48173945508586
1962	72.43016391185363
1963	71.32616689761441
1964	70.25468498025913
1965	69.27521051606942
1966	68.39734920205572
1967	67.57587973505832
1968	66.73485958936612
1969	65.81116688885186
1970	64.7921081325735
1971	63.69245541350308
1972	62.53441452022959
1973	61.28236714197548
1974	60.49555323497825
1975	59.7767522053523
1976	58.35743345316279
1977	56.76133297033439
1978	55.3297259866982
1979	54.14091385843434
1980	53.22705065569555
1981	52.583278192016124
1982	52.410630240143604
1983	52.75562839123121
1984	53.138292552659514
1985	53.272149856922
1986	53.222754871126895
1987	53.0722054962544
1988	52.90564050180355
1989	52.761766681990174
1990	52.62727973086497
1991	52.45870673914412
1992	52.343052425198834
1993	52.494881371515504
1994	52.57029186345257
1995	52.196064590135
1996	51.49800999820968
1997	50.60133406049418
1998	49.59895846963075
1999	48.549742477636215
2000	47.48475360804058
2001	46.50363666732466
2002	45.75336042049404
2003	45.0655104156848
2004	44.22802742739994
2005	43.28270156454653
2006	42.29875759230422
2007	41.36189336587408
2008	40.53809963064026
2009	39.863859422957326
2010	39.364690468876645
2011	39.19632014451018
2012	39.3663080951526
2013	39.658467640114075
2014	40.02743454849586
2015	40.48622565736071
2016	41.0091759318662
2017	41.548370321438114
2018	42.07067457431135
2019	42.60452194418301
2020	43.185389163359524
2021	43.80667166754702
2022	44.4214029609268
2023	45.019471910733024