Year	% of working-age population
1960	4.6023015147368
1961	4.69197175279603
1962	4.784295065331447
1963	4.890224605357561
1964	5.008764554643996
1965	5.129896793383183
1966	5.253313374481378
1967	5.380184187582952
1968	5.507776430509458
1969	5.63492244725596
1970	5.760318243771668
1971	5.886413605794102
1972	6.010993755886716
1973	6.12958885013902
1974	6.245206659718691
1975	6.359583943336496
1976	6.47195498242689
1977	6.573394271298308
1978	6.664331847618528
1979	6.749080895149451
1980	6.820705916881506
1981	6.880161948820368
1982	6.929218505676797
1983	6.963273885039903
1984	6.986264098882709
1985	7.002136567077819
1986	7.009327657005675
1987	7.0045748907565315
1988	6.98250504602254
1989	6.942331655780388
1990	6.888005876176415
1991	6.830181143646315
1992	6.76252082679479
1993	6.672827184122722
1994	6.565208038657468
1995	6.4493602968948975
1996	6.333090076565194
1997	6.212608676244305
1998	6.08122518730584
1999	5.9465290626912255
2000	5.818391898955634
2001	5.69839185008602
2002	5.5887937492398425
2003	5.493298333817445
2004	5.409848757800108
2005	5.3381858160397035
2006	5.282034697602486
2007	5.244304214319053
2008	5.2283745257407155
2009	5.229065345720395
2010	5.236985854623124
2011	5.2439735251401025
2012	5.236639769609042
2013	5.18346018739541
2014	5.097979376537537
2015	5.024750855472214
2016	4.966765433177588
2017	4.920303756091425
2018	4.888719670550346
2019	4.868032205134373
2020	4.832754620954569
2021	4.773460930882117
2022	4.713904681998415
2023	4.6758853625929495