Year	% of working-age population
1960	9.90252295038945
1961	10.00258204916699
1962	10.091037680272558
1963	10.172418279532803
1964	10.260727438303602
1965	10.357090672424421
1966	10.441423450529628
1967	10.524890975436724
1968	10.629054154310886
1969	10.722610912888396
1970	10.807344948464843
1971	10.904228999647614
1972	11.000065635909406
1973	11.04056604696931
1974	11.048550640542725
1975	11.051918698916735
1976	11.027947640247318
1977	11.000314374376552
1978	10.964464395512769
1979	10.913002933898273
1980	10.839412488347522
1981	10.735402773377288
1982	10.614906441630874
1983	10.506869805868375
1984	10.406448872972268
1985	10.30499379709238
1986	10.245843399175785
1987	10.22146395048745
1988	10.202992739094475
1989	10.213713973421473
1990	10.237030491129174
1991	10.282025336609872
1992	10.39996264132734
1993	10.534204705008532
1994	10.660597897605003
1995	10.776904466368606
1996	10.843217476880236
1997	10.88381182863061
1998	10.898161143299555
1999	10.920583833058423
2000	10.981129133327972
2001	11.065017004576392
2002	11.161650696566229
2003	11.24930268979831
2004	11.310882963262324
2005	11.34682801609445
2006	11.365340030599329
2007	11.371260443858816
2008	11.375581578270713
2009	11.40569955829984
2010	11.487077285683968
2011	11.62571892127179
2012	11.782236796822351
2013	11.964610269591907
2014	12.19637824861092
2015	12.412352947304695
2016	12.583099433946007
2017	12.738614773466317
2018	12.910177877962354
2019	13.136473137161117
2020	13.397081602421142
2021	13.625015379347193
2022	13.8877380419683
2023	14.232053242449576