Year	% of working-age population
1960	51.68585012886804
1961	52.638099727367695
1962	53.615722432075586
1963	54.69286525853957
1964	55.82532166559289
1965	56.88965868315516
1966	57.9442589144185
1967	59.0479212173722
1968	60.18750510017499
1969	61.19718582893682
1970	62.12510233484843
1971	63.189969442300296
1972	64.37653954931119
1973	65.60935220042678
1974	66.81644661388356
1975	67.99091414796959
1976	69.14802053867089
1977	70.29211672026486
1978	71.43281807372176
1979	72.57331335549149
1980	73.70686334686006
1981	74.8378899404136
1982	75.95012414161198
1983	77.01936614793611
1984	78.02111154663045
1985	78.92209463340353
1986	79.70221513348602
1987	80.37219376455703
1988	80.94504291424381
1989	81.4017696693089
1990	81.71152018653316
1991	81.85863824432285
1992	81.83810604543534
1993	81.64262611155658
1994	81.25153129440754
1995	80.63300857418506
1996	79.79097348048097
1997	78.8127097241778
1998	77.75774379560802
1999	76.63721265873575
2000	75.4786652276892
2001	74.28667074730265
2002	73.05045452515418
2003	71.77807570483269
2004	70.50089630359858
2005	69.24495680034603
2006	68.01312968133851
2007	66.82795638425962
2008	65.72534966680624
2009	64.77253342098585
2010	64.00076386708713
2011	63.38008137503436
2012	62.833884225754424
2013	62.32272915120625
2014	61.927282513486034
2015	61.69185142169774
2016	61.59752639410358
2017	61.59301421197766
2018	61.58575731566728
2019	61.50416549896818
2020	61.32021036198253
2021	61.03195626081187
2022	60.646438243934654
2023	60.13011559144197