Year	% of working-age population
1960	11.0471364580688
1961	11.333045940245043
1962	11.581994868632433
1963	11.835305247252972
1964	12.179307563349393
1965	12.564453536322775
1966	12.963363882611368
1967	13.33647857614465
1968	13.703995750968707
1969	14.091780700979958
1970	14.508223204299785
1971	14.93007948616675
1972	15.324300499709251
1973	15.762176197702463
1974	16.24866761224807
1975	16.739047350112344
1976	17.205099593729724
1977	17.590316331439418
1978	17.958882347509046
1979	18.33745897516417
1980	18.5768676035919
1981	18.695319683862223
1982	18.735750928941172
1983	18.711932504110607
1984	18.798053423054846
1985	19.080845793080243
1986	19.525610362060643
1987	20.01592735225598
1988	20.480981015828917
1989	20.973911632749374
1990	21.46431239821132
1991	21.891556938894542
1992	22.294036580505445
1993	22.688135474420815
1994	23.0336367330121
1995	23.336842127868536
1996	23.604091570374358
1997	23.844930909464434
1998	24.118909354729098
1999	24.48550410827394
2000	24.84522579719762
2001	25.128859283488215
2002	25.344570192393235
2003	25.47616924773694
2004	25.58209041672921
2005	25.696085271266213
2006	25.848417524748264
2007	26.05912093184794
2008	26.324569063588086
2009	26.683674966814312
2010	27.18714434853624
2011	27.8995394297594
2012	28.72356247595471
2013	29.607941498128977
2014	30.527048606931288
2015	31.366091039495565
2016	32.10128399958233
2017	32.78253970057123
2018	33.527174792084345
2019	34.303317444233386
2020	34.94440780196584
2021	35.26209338566779
2022	35.17086196267117
2023	35.00011957618297