Year	% of working-age population
1960	70.34323084661585
1961	70.52653346086916
1962	70.97326901206448
1963	71.97234116412984
1964	72.71358646238065
1965	72.92109929177997
1966	72.9245986056151
1967	72.59154340323677
1968	72.19800136033912
1969	71.87236093491549
1970	71.40261253314134
1971	70.9450414858505
1972	70.34815351666829
1973	69.74525190289494
1974	69.4182131868748
1975	69.14659621879865
1976	68.83444117390434
1977	68.00368159456498
1978	66.37157492565429
1979	64.74270040394698
1980	63.41323838097148
1981	62.21733740901895
1982	61.25172576968467
1983	60.2077696049333
1984	59.03709980133822
1985	57.96492756463906
1986	57.021919851831655
1987	56.264754741950064
1988	55.56974611364294
1989	54.94842875763826
1990	54.47867089475482
1991	53.99457821423997
1992	53.444253835495246
1993	52.88429097695536
1994	52.20852935871126
1995	51.39245427748421
1996	50.45521162108181
1997	49.37072215791904
1998	48.27103149166407
1999	47.197623898836774
2000	46.09922931297431
2001	44.9529256847035
2002	43.739585994539105
2003	42.56780406785369
2004	41.45672506911045
2005	40.359930407608644
2006	39.41614304423627
2007	38.6796621973675
2008	38.063824528431276
2009	37.54200214920655
2010	37.07961562095604
2011	36.68411458658039
2012	36.382710661446254
2013	36.13716045674885
2014	35.92179558414104
2015	35.7007087108526
2016	35.47315683631323
2017	35.280150972455935
2018	35.05435658659451
2019	34.75450890257793
2020	34.38163960852359
2021	33.94480939963856
2022	33.48933720482037
2023	32.96882381297644