Year	% of working-age population
1960	52.72295242855436
1961	52.927334085840194
1962	52.74212605528448
1963	52.50224095157685
1964	52.563762362452195
1965	52.902663519985104
1966	53.364185662733945
1967	53.95652308799298
1968	54.54211717834768
1969	55.12378201509915
1970	55.69315467169573
1971	56.185104287915685
1972	56.638719338757845
1973	57.04251928167297
1974	57.37403835868231
1975	57.487182879907316
1976	57.38610018706425
1977	57.178054559808466
1978	56.81469027229752
1979	56.18311860346744
1980	55.05526434512823
1981	53.6194218567149
1982	52.113929466124645
1983	50.49023131736886
1984	48.99729511295021
1985	48.129368159269355
1986	47.63440619273969
1987	47.12135821755091
1988	46.70034573843738
1989	46.3105331781308
1990	45.97357559781188
1991	45.295721103586104
1992	44.8840526311171
1993	45.12336009853875
1994	45.39754769631574
1995	45.83782542604435
1996	46.36626310860946
1997	46.83363176921135
1998	47.28554498472049
1999	47.781933180276184
2000	48.33130338322471
2001	48.8617818118674
2002	49.43162484476819
2003	49.938166716324965
2004	50.444977913780086
2005	51.13175672769121
2006	51.73969503139223
2007	52.04113315441706
2008	52.208065887115204
2009	52.456459689543344
2010	52.65693748753073
2011	53.11662530914993
2012	53.83653847023382
2013	54.50512466550986
2014	55.15141374059144
2015	55.62483708621436
2016	55.932311935826384
2017	56.14041237237846
2018	56.29440839025614
2019	56.54793364163066
2020	56.81374016732592
2021	57.06530729548208
2022	57.440220027928746
2023	57.874864149260084