Year	% of working-age population
1960	71.41623807545487
1961	71.92752971166871
1962	72.26164949995311
1963	72.4267629202263
1964	72.41963407657245
1965	72.38788102560592
1966	72.35702414507658
1967	72.2355081549665
1968	72.01694513627506
1969	71.65840475691694
1970	71.077538588487
1971	70.30134788371132
1972	69.39470103913946
1973	68.39682120554346
1974	67.42168881306823
1975	66.48395866809916
1976	65.57429665791248
1977	64.6855282491112
1978	63.84040547874398
1979	63.07952971899381
1980	62.39764752119898
1981	61.762999563163284
1982	61.19019858136225
1983	60.74427213555936
1984	60.394055171551194
1985	60.117665376513145
1986	59.93161911601724
1987	59.81580487118237
1988	59.72729097925547
1989	59.721468555752026
1990	59.736835474207844
1991	59.5774151622425
1992	59.255060349690204
1993	58.926378269982926
1994	58.67150720414248
1995	58.21368143238877
1996	57.4719335517278
1997	56.58124242681506
1998	55.576683799842
1999	54.47841879006781
2000	53.44406947239273
2001	52.54166105682842
2002	51.67443529404359
2003	50.745097943799145
2004	49.69975195798705
2005	48.615750472396165
2006	47.544272562714795
2007	46.49383308718711
2008	45.49996711882926
2009	44.59283340566798
2010	43.89116572333095
2011	43.37946828828212
2012	42.85270239784186
2013	42.36640038945808
2014	41.95829932039034
2015	41.492111225424786
2016	40.98928809834382
2017	40.47791496213385
2018	39.944469425511066
2019	39.493295469656815
2020	39.14835200024345
2021	38.79047584592565
2022	38.382030074312624
2023	37.959528488442416