Year	% of working-age population
1960	76.42416203563758
1961	76.28957664017372
1962	75.87264864582099
1963	75.35313667924297
1964	74.97678795461795
1965	74.62623383928005
1966	74.11453955092816
1967	73.54169034371809
1968	72.9242668177543
1969	72.20758102583899
1970	71.38196724551267
1971	70.44440818676024
1972	69.39541154199014
1973	68.20475777880648
1974	66.87528420509501
1975	65.55387677223221
1976	64.39544933852275
1977	63.38885443044712
1978	62.513109403181076
1979	61.7875184758794
1980	61.15314004908657
1981	60.56678125988962
1982	59.852980712443696
1983	58.9330112600411
1984	57.95901750291519
1985	56.95652819646039
1986	55.90600492607598
1987	54.803874416770036
1988	53.666784314656354
1989	52.61706247056902
1990	51.63302928628952
1991	50.610663682044
1992	49.56565527229336
1993	48.402558612615906
1994	47.067842865908496
1995	45.70432855873231
1996	44.3709798270406
1997	43.15501041056716
1998	42.1358179936113
1999	41.260880888807954
2000	40.55539785701796
2001	40.000876629534766
2002	39.56253733849809
2003	39.24633932145408
2004	38.98683310067106
2005	38.767794508972
2006	38.58825730256854
2007	38.43687648748485
2008	38.33427900912032
2009	38.267721547214265
2010	38.17851484803065
2011	38.06284090704376
2012	38.015950969292994
2013	38.02352883186881
2014	37.98492187678876
2015	37.845126133715624
2016	37.59131672311511
2017	37.266473526374675
2018	36.89612249246333
2019	36.464371869885795
2020	35.950740330271564
2021	35.372720174154
2022	34.759207271632924
2023	34.13282212781695