Year	% of working-age population
1960	9.135911346106392
1961	9.212384506616406
1962	9.301101317682672
1963	9.40722851121762
1964	9.505205249746874
1965	9.585769107647216
1966	9.659151285199272
1967	9.730809891185162
1968	9.808568975587733
1969	9.875923345265095
1970	9.933460332436056
1971	9.996047042920447
1972	10.05804675993945
1973	10.083913727604955
1974	10.086833752622443
1975	10.08635787710409
1976	10.06612915732438
1977	10.042745875951395
1978	10.018242976547896
1979	9.99803406517962
1980	9.953981387201637
1981	9.869117846798794
1982	9.773640592101277
1983	9.690115161738238
1984	9.615342215622958
1985	9.544581886005014
1986	9.50909640290731
1987	9.496347558631296
1988	9.484751922944914
1989	9.49547434298011
1990	9.514531642588429
1991	9.545667068445606
1992	9.618524079782894
1993	9.70195659540595
1994	9.785130889653892
1995	9.863838167927089
1996	9.91155359298283
1997	9.94640375580034
1998	9.968789327851667
1999	10.002925670627935
2000	10.06962463380355
2001	10.151573803802199
2002	10.239603683905221
2003	10.32307701509884
2004	10.386927049642104
2005	10.4304839359989
2006	10.46276490002293
2007	10.488191096480824
2008	10.513678887151181
2009	10.55906082741085
2010	10.639558112112848
2011	10.759312886573804
2012	10.89649151336781
2013	11.058234876583663
2014	11.257329922133167
2015	11.449094935201686
2016	11.615530756586782
2017	11.779013767828763
2018	11.951239739005983
2019	12.173395851917459
2020	12.431186332680909
2021	12.651579238249333
2022	12.900237583371615
2023	13.223258372681034