Year	% of working-age population
1960	77.33926756863492
1961	76.80342932399107
1962	76.50230287629668
1963	76.66904030436818
1964	77.41353407365601
1965	78.30948920991895
1966	79.03641435321353
1967	79.65522987760846
1968	80.18756903883502
1969	80.67530731758788
1970	81.12436454322476
1971	81.53433630266507
1972	81.93452274696777
1973	82.33590977405625
1974	83.2498051694025
1975	84.64451406880762
1976	86.00764172215452
1977	87.35512275589352
1978	88.68228703763413
1979	89.98444934558802
1980	91.27608603066439
1981	92.6050668554227
1982	93.89742217825182
1983	95.1554742233648
1984	95.88656221574648
1985	96.07330202725919
1986	96.28138861718969
1987	96.4992651859792
1988	96.69170254186805
1989	96.8435581493339
1990	96.97985560851508
1991	97.1215927841522
1992	97.26733206973256
1993	97.42886498288163
1994	97.62920085090482
1995	97.83255452457628
1996	97.95830876401224
1997	97.99241706731131
1998	97.97396917525262
1999	97.84488620908513
2000	97.55722819955007
2001	97.15760758753127
2002	96.66684323607804
2003	96.25829669234982
2004	96.0008996304221
2005	95.76510093227203
2006	95.53154075463807
2007	95.29198917800413
2008	95.03996057508945
2009	94.82047164703027
2010	94.63811711184923
2011	94.43477347054548
2012	94.1294375841834
2013	93.62810359423254
2014	92.9297914720347
2015	92.13520130367935
2016	91.25386786091299
2017	90.27612301078362
2018	89.15519382303904
2019	87.88965143309049
2020	86.49901533583642
2021	84.97532182526002
2022	83.42587125851804
2023	81.90183143647826