Year	% of working-age population
1960	63.35893242314348
1961	63.15252170818712
1962	61.81261151685876
1963	60.34622407482143
1964	58.904798976811435
1965	57.56336046986693
1966	56.32999729510414
1967	55.151065346407776
1968	53.93049594533318
1969	52.59149516747209
1970	51.11017960376078
1971	49.500219725508224
1972	47.796341331807426
1973	46.26862342207472
1974	45.39560619033243
1975	44.54427673610337
1976	43.121520735865126
1977	41.61018689669337
1978	40.272211967875435
1979	39.17188608097532
1980	38.3337167810243
1981	37.749301666674064
1982	37.622206168866704
1983	38.00640406958542
1984	38.43512010775545
1985	38.623937389235
1986	38.622770534577064
1987	38.498312197792174
1988	38.318583011459765
1989	38.117213008475076
1990	37.88621379820293
1991	37.59427761358628
1992	37.36627711348423
1993	37.53020867757533
1994	37.71857237324699
1995	37.449042618900556
1996	36.83310839656811
1997	35.98305155850149
1998	34.99299976447806
1999	33.92757482499641
2000	32.825975714647896
2001	31.7992012997859
2002	31.045863173234167
2003	30.37653081201012
2004	29.52070009811681
2005	28.520367842517423
2006	27.440424427501497
2007	26.357476933850933
2008	25.337100262321314
2009	24.421710985162264
2010	23.635912790202777
2011	23.132326251669927
2012	22.915358726157322
2013	22.77285309608694
2014	22.670383298475038
2015	22.64158310871093
2016	22.68109075285019
2017	22.742530932737402
2018	22.790895018556856
2019	22.84901283379888
2020	22.91823346330514
2021	22.982820935734836
2022	23.00505566306966
2023	22.97524351396638