Year	% of working-age population
1960	83.46927975766866
1961	86.07400305708059
1962	88.66038071517524
1963	90.83043626003085
1964	92.55922475603317
1965	93.68300534297946
1966	94.18153107426565
1967	94.22299564559175
1968	93.874765269723
1969	93.18950530626495
1970	92.35578848274942
1971	91.97687670781441
1972	92.22715088511832
1973	92.56432119317336
1974	92.72750494064505
1975	93.63085908719474
1976	95.15518800013393
1977	96.2665810868635
1978	96.93295672564484
1979	97.1532629209019
1980	97.07572451660671
1981	96.80776924566045
1982	96.45534110598435
1983	96.2161486803061
1984	96.1349474150883
1985	96.22289478802023
1986	96.44857793014836
1987	96.76416124590476
1988	97.12657507233449
1989	97.4143477328449
1990	97.8193537347061
1991	98.00624026702538
1992	97.41030233946697
1993	96.17651233578138
1994	94.44794439815473
1995	92.3256897608829
1996	89.93890463728474
1997	87.43957162616806
1998	84.89464040311499
1999	82.33648277445637
2000	79.54060509881472
2001	76.51005642428514
2002	73.49024513608161
2003	70.49048853977725
2004	67.52988120333053
2005	64.63674041459763
2006	61.824904719771126
2007	59.08154204433126
2008	56.4178295889195
2009	53.859321456866404
2010	51.673535714396465
2011	49.96902153381186
2012	48.422896679456514
2013	46.91827197344689
2014	45.52068071678125
2015	44.27160357576426
2016	43.250837098131996
2017	42.439283909238426
2018	41.660014081668436
2019	40.84324803596099
2020	40.01137639094155
2021	39.168800738977296
2022	38.34638455288769
2023	37.558224278335814
