Year	% of working-age population
1960	8.114805906582335
1961	8.332680004987811
1962	8.548671048115782
1963	8.763325190880286
1964	8.980445458589756
1965	9.199252720392739
1966	9.425236809101088
1967	9.654368490908018
1968	9.87321241956308
1969	10.073668521587459
1970	10.275837429786025
1971	10.478491796999126
1972	10.669490515516419
1973	10.86356169953934
1974	11.065764997799949
1975	11.285275972427346
1976	11.520766735599935
1977	11.769076390759935
1978	12.026752968603406
1979	12.273567699268241
1980	12.499361172199674
1981	12.705425077692475
1982	12.887102394572846
1983	13.049167747862253
1984	13.201250614112379
1985	13.353677381785955
1986	13.519248159774392
1987	13.697617969863208
1988	13.887320052962032
1989	14.084499988680815
1990	14.285960105788309
1991	14.50120856163674
1992	14.717844114334705
1993	14.913864594874928
1994	15.094810999379757
1995	15.253384085778595
1996	15.382833445506064
1997	15.480292231614962
1998	15.556241331397318
1999	15.627817345983766
2000	15.693039046048863
2001	15.752251497554337
2002	15.811408804649945
2003	15.851878622760317
2004	15.895176894150978
2005	15.967617697198753
2006	16.05328757903737
2007	16.13369739534468
2008	16.22183568328584
2009	16.340360242785902
2010	16.46720623337518
2011	16.610601812617933
2012	16.788137533045568
2013	16.975386515608747
2014	17.15004571053843
2015	17.320406917435964
2016	17.475670152571524
2017	17.631448690468158
2018	17.80928163710009
2019	17.996622413517528
2020	18.14941695148236
2021	18.23767486406529
2022	18.327898964612316
2023	18.494501332501294