Year	% of working-age population
1960	67.39375286769582
1961	68.00108066707585
1962	68.20206129154653
1963	67.95963087433815
1964	67.3577119680462
1965	66.44655679702593
1966	65.24149778086733
1967	63.74690397668811
1968	62.007402489596245
1969	60.14452999629055
1970	58.27176343184518
1971	56.487350297672755
1972	54.82573760264048
1973	53.20963569522017
1974	51.56398555817928
1975	49.89977078013195
1976	48.23392473998233
1977	46.58638492116644
1978	44.98347621474176
1979	43.461861749578254
1980	42.07658592131532
1981	40.9013067636225
1982	39.94956743353224
1983	39.158828893162735
1984	38.4683688564824
1985	37.82656129123595
1986	37.19231607645701
1987	36.5656517191098
1988	35.977757436444115
1989	35.420997617679745
1990	34.86902734535695
1991	34.36555903408294
1992	35.40375769206025
1993	37.297472691008515
1994	37.97049765084976
1995	36.95970032609713
1996	34.475682919870174
1997	32.41132956021357
1998	30.97433650101661
1999	29.68279507699642
2000	28.42874538173658
2001	27.269513496858256
2002	26.236360647428302
2003	25.347062148753075
2004	24.621364846197437
2005	23.96901526317892
2006	23.29939675229708
2007	22.86158453764834
2008	22.778421328925663
2009	22.8264561046018
2010	22.79733631368166
2011	22.613316384448378
2012	22.333070770015528
2013	22.015724219437548
2014	21.77051059548765
2015	21.678113940273143
2016	21.676675201590424
2017	21.745988876041288
2018	21.87788200801112
2019	22.02694249057478
2020	22.164478295155806
2021	22.288417332461897
2022	22.282438934414454
2023	22.129163783268186