Year	% of working-age population
1960	89.50038580765539
1961	89.65006596134091
1962	89.60877231094115
1963	89.15161506991512
1964	88.10962542918102
1965	87.73879146741272
1966	88.21124722933783
1967	87.89433051252303
1968	86.7638526847365
1969	85.39833736089278
1970	83.87587357646319
1971	82.30925509920972
1972	80.77146494719761
1973	79.30124381620803
1974	77.9765932070579
1975	76.90233034617494
1976	76.17764755907896
1977	76.3525205405413
1978	77.12391294434026
1979	77.82689541451776
1980	78.53199210442399
1981	79.22577573616928
1982	79.86711739721949
1983	80.43157106235235
1984	80.93848798360732
1985	81.10858858382885
1986	80.34341586514816
1987	79.70622299924696
1988	79.77775066747134
1989	79.732637031466
1990	79.45873706701252
1991	78.97156581210173
1992	78.32360171788517
1993	77.53693410819605
1994	76.59443799019489
1995	75.56017599780239
1996	74.55279415109183
1997	73.406756862223
1998	72.0775198291586
1999	70.73020948684183
2000	69.42159461691075
2001	68.23724938259427
2002	67.15216155045253
2003	66.1473176865046
2004	65.23786358674994
2005	64.38707913498678
2006	63.57983833938333
2007	62.64059162155438
2008	61.77318360543998
2009	61.162982068905414
2010	60.53062881669111
2011	59.85758038938616
2012	59.21278874719589
2013	58.67120973039327
2014	58.26563670042959
2015	57.891707533338256
2016	57.49492382090459
2017	57.03592215495189
2018	56.50405054413399
2019	56.00341779550727
2020	55.59870573483418
2021	55.27090019189903
2022	54.962463926507574
2023	54.623276757880156