Year	% of working-age population
1960	14.740113269951681
1961	14.923067248147218
1962	15.03346029054452
1963	15.13293540426344
1964	15.271119001638137
1965	15.424633429166706
1966	15.579764154641602
1967	15.773637288393271
1968	15.958943423123936
1969	16.118625343161483
1970	16.271723528396645
1971	16.40439354313167
1972	16.51989580474878
1973	16.644291407947822
1974	16.78999199322217
1975	16.902637421330667
1976	16.95188849463993
1977	17.042396313466725
1978	17.175049691298305
1979	17.297456427283276
1980	17.38786021060832
1981	17.44243893401021
1982	17.492782212371683
1983	17.50835645398075
1984	17.49883937121726
1985	17.605761234445456
1986	17.809526137929073
1987	18.006180400896373
1988	18.237135892595187
1989	18.456529526773174
1990	18.634367073779327
1991	18.79802843517774
1992	18.950527308911667
1993	19.082188659629743
1994	19.213420495693175
1995	19.373010936518366
1996	19.522286081453423
1997	19.67192455465769
1998	19.81844049038697
1999	19.937074768173872
2000	20.056620943008323
2001	20.185430951006392
2002	20.315427111911674
2003	20.484227711739702
2004	20.731160965378077
2005	21.02663351308919
2006	21.31443371161766
2007	21.621322779257948
2008	22.030963124515885
2009	22.54294875043329
2010	23.04091517739318
2011	23.84006738315143
2012	24.92022849664564
2013	25.836445723099853
2014	26.624947653386748
2015	27.30374590163048
2016	27.90530793017349
2017	28.519879659557333
2018	29.136453297493198
2019	29.75278906759024
2020	30.341696064703598
2021	30.91043869666002
2022	31.613149272425602
2023	32.43389968952745