Year	% of working-age population
1960	63.84049493485965
1961	63.375933690105
1962	62.27992113147521
1963	61.51621585031186
1964	61.10526657695945
1965	60.852648827921854
1966	60.62401481796312
1967	60.41182577144595
1968	60.196773266763174
1969	60.05172170155152
1970	59.919143393899745
1971	59.63351490346673
1972	59.161100216639575
1973	58.48997193736878
1974	57.63409025314452
1975	56.637611592687975
1976	55.49488479196604
1977	54.3539638286716
1978	53.270171149144254
1979	52.16248012918495
1980	51.082169361341556
1981	50.068755492407824
1982	49.07063433208905
1983	48.02300563230613
1984	46.91666919604634
1985	46.007963137191524
1986	45.41500913316965
1987	45.021933214131835
1988	44.889990325022694
1989	44.94134080120881
1990	45.109319852502296
1991	45.37176653192024
1992	45.64605173447741
1993	45.89049068784995
1994	46.12079054056621
1995	46.332086717086014
1996	46.49177573572032
1997	46.70246145391216
1998	46.97843421719469
1999	47.22984656038839
2000	47.45512231019966
2001	47.628797688898295
2002	47.732309597931064
2003	47.85484595861198
2004	48.01894471841927
2005	48.13876030273925
2006	48.17695696667163
2007	48.22843275509415
2008	48.43260103206804
2009	48.79090202344577
2010	49.15829670371103
2011	49.89765465506319
2012	50.930891241052
2013	51.68777639609817
2014	52.244199399454914
2015	52.63507544748231
2016	52.93185049953372
2017	53.27789918691913
2018	53.627801960954756
2019	54.00738175264416
2020	54.43376290681697
2021	54.92848150587314
2022	55.61695490690622
2023	56.43042837442258