Year	% of working-age population
1960	45.56715451136931
1961	45.439018873157494
1962	44.83137515273835
1963	43.990074340426844
1964	43.07878583260483
1965	42.07759565954753
1966	40.94140005932923
1967	39.80058768473869
1968	38.759639683617166
1969	37.81062373997619
1970	36.88784006086778
1971	36.1000592748199
1972	35.568216771561325
1973	35.27571065230367
1974	35.293140951253534
1975	35.56228302971275
1976	35.984755714402255
1977	36.41699635159476
1978	36.72595554797042
1979	37.01177238959996
1980	37.27171600010429
1981	37.44071414116015
1982	37.33284598733678
1983	36.96511302010247
1984	36.68759312668789
1985	36.54889249307775
1986	36.44494122647288
1987	36.29807172781674
1988	36.03895694700856
1989	35.60432526554037
1990	34.98551792874393
1991	34.285669743022446
1992	33.535421039044515
1993	32.73524674849603
1994	31.899483583114492
1995	31.04033941042959
1996	30.19661464343221
1997	29.36117694861998
1998	28.498592155413878
1999	27.600682470148474
2000	26.668894944833173
2001	25.75274482088212
2002	24.877004461563985
2003	24.05643876325655
2004	23.316792946705885
2005	22.69760582169779
2006	22.21292234974015
2007	21.867523139034937
2008	21.670398138658456
2009	21.599632906479936
2010	21.606299463018697
2011	21.644471550360706
2012	21.71964652839374
2013	21.825458293609305
2014	21.957193482756093
2015	22.125262895843584
2016	22.352936300193296
2017	22.66022756253339
2018	22.985805562230563
2019	23.273481209891997
2020	23.500792949260006
2021	23.65212632895797
2022	23.36908647767693
2023	23.125931958931496