Year	% of working-age population
1960	66.00066474294088
1961	66.85703911586496
1962	68.0751352008264
1963	69.02753328303727
1964	69.8371684122009
1965	70.28738580759777
1966	70.2207429511458
1967	69.81129194784573
1968	69.03936505040369
1969	67.84697737276427
1970	66.22531401543738
1971	64.25885787587914
1972	62.0450983806373
1973	59.691480792398224
1974	57.28335433291334
1975	54.84327548061728
1976	52.43316878422487
1977	50.1851520631703
1978	48.21846384462476
1979	46.55457109630496
1980	45.13382767464893
1981	43.93476429388761
1982	42.97978001958986
1983	42.23877080284729
1984	41.63741896484724
1985	41.07732534587103
1986	40.4598332875332
1987	39.739455224560444
1988	38.93663149884955
1989	38.138632418047806
1990	37.348347344287355
1991	36.562024386921784
1992	35.89699923659639
1993	35.37235283142084
1994	34.936755822985866
1995	34.57231053284482
1996	34.23185857993944
1997	33.84988530601271
1998	33.422555825754166
1999	33.055513032040054
2000	32.70221128001265
2001	32.279042602181214
2002	31.908564795437165
2003	31.58577918800029
2004	31.18977438638054
2005	30.697244495006398
2006	30.166493857587223
2007	29.74348742781034
2008	29.590960330667237
2009	29.600055696582157
2010	29.480522255700155
2011	29.203784857375624
2012	28.872745810233862
2013	28.495594912030686
2014	28.069952843155914
2015	27.58644339632596
2016	27.080339234668898
2017	26.634872727846336
2018	26.274850110444937
2019	25.97732263891595
2020	25.74913535918895
2021	25.56848284485134
2022	25.337536145602996
2023	24.97349536235436