Year	% of working-age population
1960	77.23879488880142
1961	78.86792376026301
1962	80.63444594268844
1963	82.52034038035981
1964	84.61725738456136
1965	86.57861097845782
1966	88.28608438181507
1967	89.92406998591125
1968	91.42682126478792
1969	92.71708505128385
1970	94.00187581246252
1971	94.80921887353608
1972	94.58008141365426
1973	93.85947569922234
1974	93.07941267128086
1975	92.31859748214137
1976	91.60020929805526
1977	90.84451869767986
1978	90.07185215257869
1979	89.38815893352854
1980	88.77552347479225
1981	88.2870215622101
1982	87.95885465439139
1983	87.76811268800563
1984	87.77286219050224
1985	88.01103472529643
1986	88.48251251716378
1987	89.10641181439937
1988	89.72599150703883
1989	90.28586992683849
1990	90.77927854463505
1991	91.2574167265756
1992	91.65854356398398
1993	92.00797405902807
1994	92.30926924953192
1995	92.37241381260543
1996	92.23215169507422
1997	91.97257688062611
1998	91.61705034409673
1999	91.24200967578517
2000	90.82967848640425
2001	90.39995805622884
2002	89.98546719092916
2003	89.5787160631311
2004	89.2126673107312
2005	88.92528676665098
2006	88.71955230511492
2007	88.5814856962521
2008	88.53090620340805
2009	88.54138884672166
2010	88.55580451058793
2011	88.54669994243923
2012	88.54171116929707
2013	88.55494617091364
2014	88.55455941544986
2015	88.52065873456576
2016	88.36971985782759
2017	88.09346596345483
2018	87.76638476824252
2019	87.3595650046694
2020	86.95513207320548
2021	86.50621462003959
2022	85.931640046183
2023	85.24124375924742