Year	% of working-age population
1960	9.706326012266077
1961	9.896900582087525
1962	10.068251990271222
1963	10.258678911961871
1964	10.465633266845419
1965	10.69357408689875
1966	10.945325679921572
1967	11.221180211399345
1968	11.521443966540385
1969	11.850166932052696
1970	12.039199223362107
1971	12.035949124407022
1972	12.013669837515902
1973	12.023460058397966
1974	12.0847672840317
1975	12.187002073028244
1976	12.31296586071242
1977	12.470253275624826
1978	12.66451323405644
1979	12.951998631970513
1980	13.255022757097057
1981	13.443286239814686
1982	13.5783770106887
1983	13.718987744959843
1984	13.908471140686895
1985	14.142679913277767
1986	14.356939043404843
1987	14.571152009836624
1988	14.791503333606643
1989	15.07240961073015
1990	15.323430512393788
1991	15.446417162409665
1992	15.593837303837986
1993	15.755749435496567
1994	15.886095044903357
1995	16.07202254233556
1996	16.294328828697353
1997	16.498501249336787
1998	16.687168565700233
1999	16.896913940196796
2000	17.201223416872498
2001	17.581712903923574
2002	17.96667534810627
2003	18.36159156417812
2004	18.777382505886674
2005	19.211569737288624
2006	19.694025136054748
2007	20.24823223074973
2008	20.875862116371607
2009	21.5887299941175
2010	22.377677547313112
2011	23.258563481954344
2012	24.232257977928086
2013	25.254257733920515
2014	26.34552775947951
2015	27.539070760901748
2016	28.828165405499323
2017	30.195551712898
2018	31.47261057687201
2019	32.6044501190076
2020	33.72712894916282
2021	34.93554313695814
2022	36.03497995909342
2023	36.89866153020055