Year	% of working-age population
1960	6.056363370719164
1961	6.032929399052735
1962	6.021437169826104
1963	6.019617434293495
1964	6.027065175826209
1965	6.037258984592009
1966	6.0500231127217665
1967	6.066700401254968
1968	6.085662836262203
1969	6.1051019654309435
1970	6.122520737781352
1971	6.119014693205336
1972	6.11588265976434
1973	6.131668593251407
1974	6.145531543645294
1975	6.155724352990845
1976	6.172465509549898
1977	6.196060022550891
1978	6.218355512175163
1979	6.237548276903362
1980	6.243240667905468
1981	6.2403830857394
1982	6.238435698813949
1983	6.2343544077736075
1984	6.234190257531832
1985	6.2385658459588855
1986	6.2418959890105885
1987	6.247330676242045
1988	6.247019348557286
1989	6.240001977029253
1990	6.234721867475526
1991	6.230563980595627
1992	6.226215578511463
1993	6.216075489594588
1994	6.194020895807349
1995	6.168289474566642
1996	6.146880378260805
1997	6.128718746666583
1998	6.11258869990018
1999	6.102973894568383
2000	6.095670856399909
2001	6.085990922766113
2002	6.080727283950893
2003	6.0771561652862545
2004	6.070755653535077
2005	6.062554108360409
2006	6.054843065592331
2007	6.048377328632173
2008	6.044651971594153
2009	6.0442981218613285
2010	6.049021060824699
2011	6.061094509001866
2012	6.082098123569778
2013	6.1060733156162845
2014	6.128732263591504
2015	6.160703419916803
2016	6.202839915042172
2017	6.253419752708348
2018	6.315696740403749
2019	6.3850347719227205
2020	6.4364505291807586
2021	6.466592476683447
2022	6.503549779166941
2023	6.561469211970051