Year	% of working-age population
1960	73.28154485871613
1961	72.64907433011884
1962	72.91175013101216
1963	74.57548548312997
1964	76.09515330443492
1965	76.77993548180082
1966	77.08066189569274
1967	76.73721322802969
1968	76.3159189088314
1969	76.12142415112544
1970	75.71196994237495
1971	75.3344858978242
1972	74.62643930987359
1973	73.89925423428538
1974	73.74860820424875
1975	73.70380787065619
1976	73.53053771385812
1977	72.21477091265358
1978	69.19512304218271
1979	66.13448274633066
1980	63.648472926346784
1981	61.44793320614357
1982	59.713090929597904
1983	57.795371384444636
1984	55.608519305158126
1985	53.64170800769228
1986	51.9754314409132
1987	50.725102113702
1988	49.662777626227864
1989	48.81860472206446
1990	48.378576879007944
1991	47.96627438668922
1992	47.41173336713458
1993	46.85471056445007
1994	46.16168688361789
1995	45.311828003467134
1996	44.32164401090092
1997	43.13202310629536
1998	41.97272275612018
1999	40.902589333523565
2000	39.776020820935024
2001	38.53394936164453
2002	37.125965623146854
2003	35.74834147938047
2004	34.44408230710706
2005	33.11837462922663
2006	32.06405758347981
2007	31.388034074029214
2008	30.87784098601708
2009	30.487295987151487
2010	30.180519655459623
2011	29.94718682235685
2012	29.84413172410414
2013	29.82663134757269
2014	29.845434045220752
2015	29.844511039499825
2016	29.8519481448664
2017	29.95720618482347
2018	29.992495300404737
2019	29.88987865432643
2020	29.66118881415778
2021	29.274108100772853
2022	28.807715081809008
2023	28.278891056755334