Year	% of working-age population
1960	10.269924932119471
1961	9.73228812305872
1962	9.140893470790378
1963	8.610968733982572
1964	8.241494968854814
1965	8.010770784247729
1966	7.853018372703412
1967	7.820901358881612
1968	7.875158773362366
1969	7.948523845571537
1970	8.008101581366363
1971	8.030303030303031
1972	8.039596013644571
1973	8.0762306785027
1974	8.152895663721923
1975	8.304143988791292
1976	8.480137297461006
1977	8.674607317420396
1978	8.923531783362451
1979	9.24219910846954
1980	9.60048426150121
1981	9.954264191552326
1982	10.220073968288842
1983	10.423430027577059
1984	10.657868426314737
1985	10.941483936766955
1986	11.256321208797903
1987	11.614236242470097
1988	12.046783625730995
1989	12.533048471090932
1990	13.041915860263353
1991	13.380125052517114
1992	13.586749285033365
1993	13.846295528848367
1994	14.145645779481237
1995	14.49406884034485
1996	15.027513969447808
1997	15.722058730125124
1998	16.401334403107974
1999	17.046507709158313
2000	17.662261256907527
2001	17.71897847590571
2002	17.265357945111827
2003	16.875653082549636
2004	16.52411477956538
2005	16.18206102948731
2006	16.000204366633742
2007	15.892669238863558
2008	15.662302483069979
2009	15.326062681456115
2010	14.85817372279584
2011	14.850810221252727
2012	15.433083116175956
2013	16.119443580976064
2014	16.819310773051846
2015	17.506929503207925
2016	17.98554253830077
2017	18.28134682916753
2018	18.661265076880582
2019	19.097529681768073
2020	19.587995027526194
2021	20.079703558693982
2022	20.720392626120738
2023	21.584704189706876