Year	% of working-age population
1960	80.42859070866353
1961	80.61466014979895
1962	81.20700062541735
1963	82.38643479890224
1964	83.36519043368752
1965	83.82487581636565
1966	84.06242474451257
1967	83.96812647313686
1968	83.78511279279387
1969	83.6500615015287
1970	83.36780734825192
1971	83.08153153106971
1972	82.63483020558188
1973	82.1701379980796
1974	81.96994542848492
1975	81.80148867316665
1976	81.5695466189263
1977	80.797617585312
1978	79.23944384492526
1979	77.70014281494831
1980	76.42722690707305
1981	75.2732600186933
1982	74.36123143107062
1983	73.40588251846908
1984	72.36577043500797
1985	71.42874686198297
1986	70.59479708623446
1987	69.90835428484165
1988	69.26630597973413
1989	68.70250783906876
1990	68.28575081841078
1991	67.83559534497515
1992	67.3646636035949
1993	66.90331915840689
1994	66.32051478594134
1995	65.59320959676654
1996	64.73743387970451
1997	63.751438147081736
1998	62.764177087223715
1999	61.81724054099145
2000	60.86033257430577
2001	59.8856109452152
2002	58.891764444184304
2003	57.93043478013061
2004	56.98907998319503
2005	56.054262616152556
2006	55.249842597163266
2007	54.60611508904061
2008	54.055690205832065
2009	53.58464572017096
2010	53.17246198168214
2011	52.84519134298933
2012	52.625694323894905
2013	52.478946287013144
2014	52.39171330381112
2015	52.35064915688331
2016	52.33496259660069
2017	52.37438516127026
2018	52.419979913282084
2019	52.425121486576934
2020	52.361814249769175
2021	52.18575526442469
2022	52.01205412436632
2023	51.834477464229295