Year	% of working-age population
1960	9.460615082507205
1961	9.701452936119631
1962	9.510900259798937
1963	9.383425852498018
1964	9.271238426478877
1965	9.27632002797898
1966	9.227060392253826
1967	9.013984895302725
1968	8.782272494887525
1969	8.513143297031721
1970	8.23809693133734
1971	8.14767534240064
1972	8.262541651849803
1973	8.446440025657473
1974	8.682125809911497
1975	8.957548447464973
1976	9.26224637065965
1977	9.592244185837364
1978	9.951515512061631
1979	10.355613215091791
1980	10.82277731739079
1981	11.071947525983159
1982	10.994111104210306
1983	10.842560600701907
1984	10.67605958633414
1985	10.493204314528741
1986	10.310634373634908
1987	10.111194169314148
1988	9.905023406553836
1989	9.74410218534127
1990	9.65009270041999
1991	9.665635611053679
1992	9.804745160632208
1993	9.985617504204718
1994	10.131958254327953
1995	10.253593646191943
1996	10.363444338584479
1997	10.434381409297513
1998	10.464409767953162
1999	10.457324161321644
2000	10.416216449842244
2001	10.326029205776754
2002	10.127685617054421
2003	9.862775187393023
2004	9.591264987232316
2005	9.319689370651998
2006	9.077389804294807
2007	8.891595615103533
2008	8.773984347309634
2009	8.75451660467065
2010	8.851205513998142
2011	9.102397876522588
2012	9.561023025162738
2013	10.151696165505278
2014	10.7844868173258
2015	11.447418753950037
2016	12.148884640947186
2017	12.923659702174161
2018	13.803449496737647
2019	14.776016789694602
2020	15.786286454336148
2021	16.86370893955975
2022	18.003048932375478
2023	19.154302641087252