Year	% of working-age population
1960	6.030918935107541
1961	6.126815139066815
1962	6.188485149393246
1963	6.22324772559954
1964	6.210469346445722
1965	6.188125090076283
1966	6.25628021384082
1967	6.362002759068814
1968	6.398975387377213
1969	6.398392303762883
1970	6.412906179139491
1971	6.459239684861161
1972	6.484948879084321
1973	6.465336883149552
1974	6.414992877952288
1975	6.3300703741458815
1976	6.249806826028734
1977	6.198382062933078
1978	6.161005647820395
1979	6.150277020337983
1980	6.169929673737067
1981	6.251168232151011
1982	6.365055464027745
1983	6.425149326177672
1984	6.4417320994037
1985	6.496594689609483
1986	6.601126054087247
1987	6.707315916178179
1988	6.825173141937328
1989	6.953507815153828
1990	7.079341349469372
1991	7.2482517880245245
1992	7.457045631587563
1993	7.675605299993526
1994	7.917346207343358
1995	8.156182694721323
1996	8.401562593157827
1997	8.708996427017409
1998	9.053831632850919
1999	9.449744284090679
2000	9.925388003337082
2001	10.441760049041655
2002	10.98280966709326
2003	11.535609080791591
2004	12.095274539118893
2005	12.63546738836798
2006	13.195749776919158
2007	13.77494878347916
2008	14.276513398359366
2009	14.738487847640272
2010	15.224667078477019
2011	15.654315048950293
2012	16.062250528541888
2013	16.55320594495013
2014	17.113401307512216
2015	17.684458820825803
2016	18.23975847440554
2017	18.98461156281262
2018	19.85693708216654
2019	20.7857721336453
2020	21.983439105424587
2021	23.301835484795905
2022	24.65720376859036
2023	26.11065909588866