Year	% of working-age population
1960	4.370693964486754
1961	4.411304619876942
1962	4.451133215061693
1963	4.487677357025137
1964	4.525730679576833
1965	4.576729014831049
1966	4.635355280365533
1967	4.6867556894140785
1968	4.738899380736967
1969	4.797339430471835
1970	4.858230951822
1971	4.914236706689537
1972	4.969136510704697
1973	5.026381262868909
1974	5.0801020204838006
1975	5.132950942843006
1976	5.178517751578104
1977	5.225559637892504
1978	5.270885028949545
1979	5.310508796956729
1980	5.34981130510513
1981	5.390982601752196
1982	5.427352734733545
1983	5.461985807479448
1984	5.498219928797152
1985	5.535441574567893
1986	5.5688000215098095
1987	5.598403809396063
1988	5.625756703066778
1989	5.652860773404767
1990	5.678890248028525
1991	5.706058909705928
1992	5.737935492365978
1993	5.7693710118505015
1994	5.793555466583626
1995	5.818527177089421
1996	5.827662470227969
1997	5.75817917037045
1998	5.656233541109514
1999	5.604009388455912
2000	5.585340594463975
2001	5.570427801083904
2002	5.566172021573433
2003	5.626746273730731
2004	5.733545818735433
2005	5.831688756864991
2006	5.896483596959613
2007	5.94481409001957
2008	6.002537732577856
2009	6.0706495934476825
2010	6.156613221019143
2011	6.253075391401426
2012	6.358997673453431
2013	6.475264245009453
2014	6.593724283046234
2015	6.691992892834462
2016	6.755917120405163
2017	6.79945998943192
2018	6.841443090582228
2019	6.8907707455764715
2020	6.926849989522915
2021	6.944541478614445
2022	6.970679573047418
2023	7.0276993990565835