Year	% of working-age population
1960	67.37085887882128
1961	67.85608102145684
1962	68.6044518565875
1963	69.58389166413303
1964	70.59495806736854
1965	71.48550090040148
1966	72.35530223247595
1967	73.23426597969986
1968	74.03575205762407
1969	74.70764389432635
1970	75.2256691050441
1971	75.66693207644191
1972	75.96875228494022
1973	76.0157715055056
1974	75.75938578820194
1975	75.08297956872522
1976	73.90014861693871
1977	72.16514461358386
1978	69.9176221417824
1979	67.31170158720595
1980	64.52313722661894
1981	61.463979250894326
1982	58.50587002257406
1983	56.01486553655296
1984	53.79228564810542
1985	51.7406894580224
1986	49.83446520021689
1987	48.15527358895111
1988	46.83504368531251
1989	45.90671505466658
1990	45.3358470748009
1991	44.99770129814062
1992	44.78506487822142
1993	44.68883569555768
1994	44.78232994982384
1995	45.05273322406181
1996	45.37849358959908
1997	45.55049880039369
1998	45.49512348566174
1999	45.35066304680501
2000	45.15734432085056
2001	44.96457784603476
2002	44.782932231138865
2003	44.51976917030691
2004	44.15285735584739
2005	43.77772592888534
2006	43.45714120462085
2007	43.28336842137382
2008	43.30024364552569
2009	43.45436463841143
2010	43.68852021930973
2011	43.960413246685604
2012	44.20521933256716
2013	44.3822601905376
2014	44.4838335813217
2015	44.58238123542847
2016	44.698345985601115
2017	44.83791919212568
2018	45.112523832630245
2019	45.4639662116635
2020	45.798821682943306
2021	45.920959499716105
2022	46.04837880854845
2023	46.356849027081076