Year	% of working-age population
1960	50.8603696993469
1961	51.438326445897886
1962	51.56438254161046
1963	51.48384270858152
1964	51.298628215471695
1965	51.155119750411004
1966	50.95399153750675
1967	50.79901536519639
1968	50.93545735423339
1969	51.065346970493245
1970	51.14088321352013
1971	51.368794583524334
1972	51.63254572598059
1973	51.70261367032772
1974	51.624422521989864
1975	51.51081195675218
1976	51.45322290817121
1977	51.539362603671734
1978	51.67811378141205
1979	51.810247142313614
1980	51.852594269313876
1981	51.69615616791477
1982	51.40465304266553
1983	51.2038732397895
1984	50.95611427049133
1985	50.5280559898859
1986	50.31762902062514
1987	50.39327279703287
1988	50.64704208642981
1989	51.00814489398541
1990	51.259391212312245
1991	51.38473173640502
1992	51.58767041476987
1993	51.8174363747395
1994	51.93940350979259
1995	52.00336883803656
1996	51.932272006714406
1997	51.69050080964551
1998	51.08527182478697
1999	49.62396061810801
2000	48.40686652055994
2001	47.99524492374287
2002	47.6723682928631
2003	47.33728319474422
2004	47.0293584139313
2005	46.879458613227634
2006	47.11817639618029
2007	47.52768867639048
2008	47.76222161073188
2009	48.07559371043641
2010	48.54028401123193
2011	49.266340495823165
2012	50.27408886046065
2013	51.3726359456849
2014	52.55127322860322
2015	53.619510531651
2016	54.64938612306687
2017	55.63036189783126
2018	56.357305401403224
2019	57.07656502664706
2020	57.84561648454455
2021	58.32987353186447
2022	58.6934065597918
2023	59.15943693738299