Year	% of working-age population
1960	81.64668223394254
1961	83.28456994116718
1962	84.55367979171706
1963	85.53299285731497
1964	85.72652647055762
1965	85.2728461642763
1966	84.89121223120803
1967	84.64534459529432
1968	84.44644976431435
1969	84.20546553068945
1970	83.83347411323746
1971	83.33966556463321
1972	82.67320599910119
1973	81.82342050697729
1974	80.95784479803862
1975	80.21604914939961
1976	79.91322133334774
1977	79.93433680417958
1978	80.07199187194556
1979	80.48733759068432
1980	81.10295607362555
1981	80.03822079677167
1982	79.32691838498752
1983	80.4097239330943
1984	81.37431735560419
1985	82.2316633281843
1986	82.94801038949726
1987	83.47822060605242
1988	83.80823838950066
1989	83.77312067641611
1990	81.93297581371085
1991	79.70928112351248
1992	78.56262655552784
1993	78.3671955009129
1994	77.26109128850828
1995	74.08878715107264
1996	70.3407923745366
1997	66.02463040873505
1998	61.41351806817414
1999	56.937150550692664
2000	52.687291109042064
2001	48.754339269961456
2002	45.53359322574235
2003	42.61141878816745
2004	39.7351434754966
2005	37.2120573231187
2006	35.00950502024542
2007	33.20279539278357
2008	31.864580705228313
2009	31.020499938476064
2010	30.615145265803122
2011	30.58045296671707
2012	30.856439508880502
2013	31.318565174375102
2014	32.15135697314066
2015	33.175219065309825
2016	33.88069248439193
2017	34.36173538805923
2018	34.74750340229911
2019	34.89166326692854
2020	34.82224015139428
2021	34.60223241403402
2022	34.2467357026868
2023	33.79313841334907