Year	% of working-age population
1960	5.988336669858125
1961	5.871734975578679
1962	5.778597633013451
1963	5.731093456243556
1964	5.7126529647072735
1965	5.710496472985181
1966	5.725311806707806
1967	5.746294318860514
1968	5.744662156225288
1969	5.639552464469308
1970	5.606936416184971
1971	5.707799340900769
1972	5.801054481546573
1973	5.89223734229519
1974	5.989660865564186
1975	6.082744594305288
1976	6.18001267694908
1977	6.285506757633143
1978	6.38477368885253
1979	6.48139960841281
1980	6.570431196193647
1981	6.6423481506616895
1982	6.698158772043492
1983	6.734677520924215
1984	6.773644325250659
1985	6.812036255867783
1986	6.838190490198139
1987	6.866444992962199
1988	6.913607168345096
1989	6.99065600616511
1990	7.046062878300365
1991	7.067599992783561
1992	7.105693474059758
1993	7.169446540773842
1994	7.2499876658937294
1995	7.349642731263417
1996	7.463902664504351
1997	7.608512075662895
1998	7.810980894599992
1999	8.054267178565352
2000	8.324500137943051
2001	8.608979196628173
2002	8.897844214518782
2003	9.196675142864954
2004	9.512910522394572
2005	9.838722428650486
2006	10.173960245043554
2007	10.521911138161899
2008	10.89068825910931
2009	11.25202275290541
2010	11.542302925285489
2011	11.798940863920453
2012	12.082989372326484
2013	12.394742653929136
2014	12.748764525176973
2015	13.168642295049308
2016	13.609908145532785
2017	14.04478302032189
2018	14.496332061194636
2019	14.990918597611316
2020	15.517146292231498
2021	15.997299286635345
2022	16.50310434608452
2023	17.092505094386098