Year	% of working-age population
1960	59.024243899522915
1961	59.43806034193009
1962	59.37769500604201
1963	59.167909734012404
1964	59.08794261793833
1965	59.1627850287039
1966	59.04895254852166
1967	58.83863223834809
1968	58.68718310704252
1969	58.42306505707293
1970	58.12661951318859
1971	57.786739679208594
1972	57.429039223683766
1973	57.00086918174984
1974	56.51825606018725
1975	55.978337567588696
1976	55.37732342267992
1977	54.787862858371106
1978	54.17818733773334
1979	53.53305557250487
1980	52.831130821477345
1981	52.090273288900725
1982	51.33014808514786
1983	50.531178175703964
1984	49.86683143089418
1985	49.42800345904831
1986	49.098439992828624
1987	48.83511913621319
1988	48.72344765746053
1989	48.66991343693253
1990	48.63821438556212
1991	48.69105009219293
1992	48.80742536123331
1993	48.92321792876661
1994	48.99382337665466
1995	49.0076507427325
1996	48.96017582903357
1997	48.88983661593269
1998	48.80039794413217
1999	48.70896882625524
2000	48.65314094494242
2001	48.656217111687134
2002	48.67210838931216
2003	48.670391710741626
2004	48.67540312051356
2005	48.72219307900263
2006	48.806182887610554
2007	48.915193748154586
2008	49.10451129274177
2009	49.36895203268071
2010	49.58697871147199
2011	49.913703445713715
2012	50.517992219981124
2013	51.252750857221685
2014	51.9712133801604
2015	52.57727540138281
2016	53.20889169798721
2017	53.85694896647037
2018	54.394216236440144
2019	54.922681150555555
2020	55.41119360786323
2021	55.84335038049274
2022	56.37933674199508
2023	56.885701144241374