Year	% of working-age population
1960	69.37143351201799
1961	70.88216627882377
1962	72.53623489347564
1963	74.39807055553285
1964	76.44285023375787
1965	78.56631679389314
1966	80.67807251608853
1967	82.71011741000504
1968	84.51566025469425
1969	85.93337855151104
1970	86.79210341123745
1971	86.5559021983603
1972	85.12663786138336
1973	83.34988187763207
1974	81.5729066169866
1975	79.68046804680468
1976	77.42687513599205
1977	74.80682839173404
1978	72.63640639698966
1979	70.93258556891767
1980	69.40731471474888
1981	68.06164326195594
1982	66.48947890272116
1983	64.91544902314891
1984	63.714563947197576
1985	62.70969120632546
1986	61.774347044517285
1987	60.78416540595059
1988	59.40031404999876
1989	57.66468093451987
1990	55.764223722275794
1991	54.21791790376549
1992	53.11334824757643
1993	51.76372034051803
1994	50.52700634157008
1995	49.40008982612229
1996	48.11709357030842
1997	47.15359170171928
1998	46.26257027476443
1999	45.08111440792263
2000	43.953065170413616
2001	42.92835242555913
2002	41.94635737586082
2003	40.96949177224406
2004	39.92601592108365
2005	39.04949784791965
2006	38.20562052714261
2007	37.42056913938389
2008	36.73870664157031
2009	35.937135817267674
2010	35.061402520480925
2011	34.22946724948237
2012	33.77141744548287
2013	33.61616097296953
2014	33.48481524430375
2015	33.40794456283441
2016	33.46362451898312
2017	33.59130108736408
2018	33.654876741693464
2019	33.666513876772484
2020	33.61837175474942
2021	33.57927648880837
2022	33.60716409217216
2023	33.547789637861285