Year	% of working-age population
1960	10.852758702471563
1961	11.23723405848209
1962	11.479647319238158
1963	11.6831147641513
1964	11.908461551044432
1965	12.308731932319226
1966	12.704166588321586
1967	13.00394828996585
1968	13.423072711189333
1969	13.818526810086226
1970	14.09357771485897
1971	14.404431296903297
1972	14.810669555458485
1973	15.164954727321067
1974	15.565954928979101
1975	15.998096342240032
1976	16.45054295758934
1977	17.000249929764262
1978	17.502142626494297
1979	17.85184090883865
1980	17.955103570105887
1981	17.71963782768637
1982	17.322046961411367
1983	17.071860055614827
1984	17.00813287574238
1985	16.892519722981767
1986	16.85893215722882
1987	17.023828271128565
1988	17.322287155499303
1989	17.74658418452491
1990	18.235275830192275
1991	18.75604725558587
1992	19.251033762007875
1993	19.78683819837696
1994	20.3002137394091
1995	20.729612733798707
1996	21.01032584934823
1997	21.05026699703144
1998	20.822793293565656
1999	20.46314025150445
2000	20.375115518780078
2001	20.643347743751875
2002	21.29042008687544
2003	22.074772489071382
2004	22.707468356993125
2005	23.145719289720933
2006	23.40997891110523
2007	23.39745798661231
2008	22.98813325072678
2009	22.500162004509363
2010	21.96900496843709
2011	21.63397663272008
2012	21.647294911802202
2013	21.794210014302163
2014	22.214467589796648
2015	22.786721163362998
2016	23.359750800132606
2017	23.94831525658067
2018	24.46319446093827
2019	25.00126745912486
2020	25.473274330302914
2021	25.822289999236748
2022	28.599019117391318
2023	31.322342802151354