Year	% of working-age population
1960	73.36022904737116
1961	73.37970382716841
1962	73.73734167169296
1963	74.26178933450859
1964	75.90618336886993
1965	78.33860412687478
1966	80.4712858926342
1967	82.52074205276405
1968	84.36525337368373
1969	85.83539925932727
1970	85.26109266525808
1971	82.9433827469191
1972	80.57301348440589
1973	78.05971461220663
1974	75.31316301915308
1975	72.30256159618204
1976	69.27135037013926
1977	66.45813550801542
1978	63.80423731142315
1979	61.41157382368848
1980	59.16123019571295
1981	56.85193932714008
1982	54.64875498265776
1983	52.65564724216335
1984	50.84947461704014
1985	49.60568222031242
1986	48.943768996960486
1987	48.46906365137848
1988	48.24778580361929
1989	48.34304489565418
1990	48.61745798156611
1991	48.1938190749079
1992	47.13337657801507
1993	46.30831692315173
1994	45.70717249555424
1995	45.227745664739885
1996	44.88544109687895
1997	44.53535686792038
1998	44.01261856732049
1999	43.342906857298594
2000	42.79911373707533
2001	42.27938218968707
2002	41.50861473484774
2003	40.65286500736605
2004	39.741466293525235
2005	38.68498674532353
2006	37.679754107358484
2007	36.78606001936108
2008	35.99374846345661
2009	35.28784097754066
2010	34.40143163439299
2011	33.38418172774001
2012	32.39069099923349
2013	31.474961819789403
2014	30.69860533087651
2015	29.892081245385572
2016	29.078234891392295
2017	28.417410645330698
2018	27.795590874921377
2019	27.23529501471642
2020	26.834709238800535
2021	26.51383494778837
2022	26.183449771139482
2023	25.72414310357759