Year	% of working-age population
1960	57.56971054224218
1961	57.99744297342717
1962	58.08811751848382
1963	57.859899762097065
1964	57.306955207075205
1965	56.439516019606295
1966	55.23739405933148
1967	53.757165087186785
1968	52.171827848971844
1969	50.560996065632814
1970	48.70293917593942
1971	46.767804820335165
1972	45.018701184877294
1973	43.31227325767594
1974	41.63773620446023
1975	40.0510481363893
1976	38.56769578319097
1977	37.18025595754059
1978	35.85357905198509
1979	34.61415260287911
1980	33.56501702872756
1981	32.78380292575341
1982	32.24801114485436
1983	31.848026168015668
1984	31.484643176775396
1985	31.10166050320625
1986	30.760374259173336
1987	30.570887499881838
1988	30.484318417305957
1989	30.431492226432756
1990	30.426296181361216
1991	30.47666989392076
1992	30.54106117115967
1993	30.523506599470757
1994	30.376151375753764
1995	30.13543177497335
1996	29.834772517760204
1997	29.48094590067049
1998	29.069371098391834
1999	28.59098872343476
2000	28.069457222435055
2001	27.54544566501612
2002	27.047964336393974
2003	26.56804525647956
2004	26.060008055648115
2005	25.519303885851624
2006	25.019492067656657
2007	24.627877590575544
2008	24.331491719400567
2009	24.0806905857559
2010	23.865088839258238
2011	23.729647309544745
2012	23.70174199076928
2013	23.748626154915016
2014	23.83711715096658
2015	23.963618654870412
2016	24.081134307337276
2017	24.1244574186955
2018	24.09851395299559
2019	24.052561512095096
2020	24.001801928362447
2021	23.930771540211797
2022	23.822343998148433
2023	23.682476904199465