Year	% of working-age population
1960	13.243104507143899
1961	13.489070356142845
1962	13.68049794072042
1963	13.843922088682264
1964	14.044246645191194
1965	14.311747503366304
1966	14.605446762272528
1967	14.895170968279894
1968	15.181749004651772
1969	15.443109034537425
1970	15.690127437868336
1971	15.946711728926097
1972	16.215490402768282
1973	16.466496937583987
1974	16.72078453423369
1975	16.970198354949506
1976	17.191026212719514
1977	17.429025423809847
1978	17.661602359161733
1979	17.83625884270169
1980	17.84286005823417
1981	17.620136133579113
1982	17.28009476300411
1983	16.944336982172576
1984	16.73577858204717
1985	16.705974696497815
1986	16.794477819111194
1987	16.92922470631526
1988	17.110149502795423
1989	17.342938160594993
1990	17.610890546676167
1991	17.906737992535522
1992	18.237630537675408
1993	18.59185726821988
1994	18.920153068245426
1995	19.21676301743492
1996	19.45387790564951
1997	19.62683993629922
1998	19.734564684266267
1999	19.803097418301014
2000	19.92856839857148
2001	20.12272431407051
2002	20.37201915457154
2003	20.6436357324951
2004	20.92704835180599
2005	21.196363790630446
2006	21.394804419060687
2007	21.46343179490294
2008	21.419531707588114
2009	21.385817971279405
2010	21.365476422776073
2011	21.490906423825702
2012	21.84837425284824
2013	22.28132756643786
2014	22.78468135118968
2015	23.296721464602747
2016	23.775809774176032
2017	24.253123583831638
2018	24.750267987480207
2019	25.28024910392622
2020	25.781403279196844
2021	26.193586124133788
2022	26.630116696646965
2023	27.204867264501136