Year	% of working-age population
1960	86.8833074673508
1961	89.62673657175
1962	91.03847694156065
1963	91.92902458366376
1964	92.4190450710416
1965	92.61134069008679
1966	91.82819247105782
1967	89.56731862154903
1968	86.0693059815951
1969	81.44542305341092
1970	75.85890552217046
1971	69.64330578736869
1972	63.75465908043252
1973	58.97241821680564
1974	55.10157999385314
1975	52.00253625864914
1976	49.57733496658703
1977	47.73279133766211
1978	46.373776733394806
1979	45.494558874928174
1980	45.21901266721913
1981	45.12928846120179
1982	44.930637502611326
1983	44.87199717060696
1984	44.97751360191213
1985	45.145650660397344
1986	45.362811241081396
1987	45.677910670902634
1988	46.05599567879006
1989	46.559933961854284
1990	47.23895687853933
1991	48.0756579619422
1992	48.95932090838904
1993	49.60585674091074
1994	49.83235443740461
1995	49.72556924563629
1996	49.29837000273267
1997	48.39868939440362
1998	47.080185581276105
1999	45.483855527139944
2000	43.59151675139054
2001	41.39910804849383
2002	38.987540529597034
2003	36.496783332349644
2004	34.02630199378808
2005	31.752952596667207
2006	29.796742815909873
2007	28.09913246662855
2008	26.696266919562035
2009	25.69435924975175
2010	25.038029894413754
2011	24.84678472023316
2012	25.322517865091942
2013	26.138677845472287
2014	26.98559826472962
2015	27.906396567208862
2016	28.951391703893314
2017	30.198700070134233
2018	31.70623640685853
2019	33.41153246168444
2020	35.16164620107444
2021	36.864546144968095
2022	38.530733437621436
2023	40.17629809826588