Year	% of working-age population
1960	5.767390813335813
1961	5.748467296985857
1962	5.762333220833464
1963	5.79189534131156
1964	5.832240668183148
1965	5.891120701523471
1966	5.960768855793849
1967	6.026686614527566
1968	6.085427166828299
1969	6.135711220161689
1970	6.177874238485889
1971	6.265566914389764
1972	6.40020186207929
1973	6.532273222401955
1974	6.657588329443009
1975	6.774069481342656
1976	6.878457250140668
1977	6.96082741218402
1978	7.0185412177971775
1979	7.060866288102198
1980	7.072983639543776
1981	7.050565717991095
1982	7.025608040354426
1983	7.012247890467576
1984	7.011485923540972
1985	7.028283479202985
1986	7.060586202832394
1987	7.101664236295252
1988	7.144193250867438
1989	7.189300656224086
1990	7.226972947955685
1991	7.262481172851324
1992	7.314550785600417
1993	7.3841442371491945
1994	7.467825159839088
1995	7.566256602686715
1996	7.681059462153161
1997	7.80867983333462
1998	7.945872321375505
1999	8.090648341648787
2000	8.2366321937522
2001	8.395272650763957
2002	8.566050565769629
2003	8.733108827067676
2004	8.888093715166443
2005	9.029291450434362
2006	9.163292334778205
2007	9.290684108695237
2008	9.418352861674384
2009	9.54533746467508
2010	9.647931518825915
2011	9.788917918350572
2012	9.987691880809333
2013	10.194603516910298
2014	10.421006181186959
2015	10.677683952684525
2016	10.961315044495203
2017	11.264731163844155
2018	11.594412252415124
2019	11.87388866424949
2020	12.036315662093934
2021	12.155502003621125
2022	12.391196398720362
2023	12.74329259716456