Year	% of working-age population
1960	72.44761983397551
1961	71.23868059350647
1962	71.24114717745819
1963	73.12447576114181
1964	74.88404582385083
1965	75.59424552770264
1966	75.78842643869505
1967	75.16189818834262
1968	74.52778799166117
1969	74.28902475968617
1970	73.82203414751346
1971	73.4430139498585
1972	72.70074057082176
1973	71.99640931919241
1974	72.10807736512835
1975	72.40842636696625
1976	72.53815795740675
1977	71.14006817314191
1978	67.46533716165328
1979	63.723904358382754
1980	60.7303933171834
1981	58.10913652870882
1982	56.11682269708791
1983	53.887940403273824
1984	51.30691667899665
1985	49.03816127753412
1986	47.19564614676197
1987	45.921039801929965
1988	44.89111978953933
1989	44.123985168370524
1990	43.884241667716466
1991	43.66678577976448
1992	43.243847586501985
1993	42.82404273112512
1994	42.22603139584833
1995	41.42445358181931
1996	40.441346152192885
1997	39.197313266754655
1998	38.01902028257358
1999	36.96336367990746
2000	35.7921500521682
2001	34.421247548612556
2002	32.79687614711693
2003	31.200672560263282
2004	29.69545324225333
2005	28.15215531516722
2006	26.971552560869128
2007	26.29381293130636
2008	25.829582724997202
2009	25.518289114357177
2010	25.30488788946102
2011	25.171964766423432
2012	25.19975690060368
2013	25.330615199225274
2014	25.499078886200692
2015	25.629297126942053
2016	25.770497833721407
2017	26.050884383652985
2018	26.22374007933179
2019	26.19400589625477
2020	25.981549830609246
2021	25.53847484154561
2022	24.983894902830237
2023	24.349609982620883