Year	% of working-age population
1960	5.857959507047242
1961	5.95813817665449
1962	6.093581635641905
1963	6.24536895261907
1964	6.372432349281292
1965	6.454762977065058
1966	6.502450754359904
1967	6.519620915575583
1968	6.523288391662926
1969	6.532980259489969
1970	6.550783821661112
1971	6.583749501700212
1972	6.637502518265516
1973	6.706056402120556
1974	6.78142300362397
1975	6.856545395939226
1976	6.926857332241666
1977	6.981858876351396
1978	7.017925899725329
1979	7.04104189474478
1980	7.052676900184647
1981	7.056310699393263
1982	7.055600059439559
1983	7.050763341240848
1984	7.044254884023256
1985	7.038780293631093
1986	7.0348977197726645
1987	7.03242150585362
1988	7.031143273628956
1989	7.0330734585679675
1990	7.041142317544204
1991	7.057291924386222
1992	7.0815072485578705
1993	7.112683734469136
1994	7.148487645616294
1995	7.187811404973142
1996	7.2306444651767166
1997	7.276606941690436
1998	7.326148382977111
1999	7.378549631525278
2000	7.432918782221167
2001	7.490271358344298
2002	7.553278403551585
2003	7.617674642922653
2004	7.6732458283535045
2005	7.719547291465225
2006	7.759990265126966
2007	7.7959590815615405
2008	7.832250053612285
2009	7.872998897199472
2010	7.921135292755571
2011	7.982798379173241
2012	8.063941968747542
2013	8.170186783126601
2014	8.34408697584166
2015	8.581601676800323
2016	8.83554041094142
2017	9.102562909522476
2018	9.382287892886543
2019	9.669271896835468
2020	9.926780798544348
2021	10.07624085027697
2022	10.172157988225667
2023	10.39594768931283