Year	% of working-age population
1960	48.649599213092635
1961	48.89178473200123
1962	48.7199755182732
1963	48.40699943522706
1964	48.20498359956052
1965	48.120992143091065
1966	47.892900622972824
1967	47.60076400720032
1968	47.361413651796596
1969	47.03032788938526
1970	46.64535163188705
1971	46.18957198682858
1972	45.695578814085025
1973	45.14278134885652
1974	44.54828188375588
1975	43.89663207193449
1976	43.19498305796859
1977	42.49613849754378
1978	41.77852751887619
1979	41.041335437339065
1980	40.32332624819137
1981	39.67157329795149
1982	39.048344263209586
1983	38.37399984305429
1984	37.725485360157634
1985	37.142884952426186
1986	36.57507661935288
1987	36.049335037612096
1988	35.60780626595758
1989	35.204771099386925
1990	34.84142071681354
1991	34.51408336077698
1992	34.220180289528436
1993	33.94854866464909
1994	33.64482536148597
1995	33.301183719036686
1996	32.94780705371101
1997	32.61044836919776
1998	32.288079656140624
1999	31.97553137577049
2000	31.65817154358288
2001	31.33349950187778
2002	30.999129155695698
2003	30.64631216879601
2004	30.28077193487663
2005	29.91622884699196
2006	29.571577545572865
2007	29.26177707741174
2008	29.01276714871385
2009	28.801223655496425
2010	28.59056017464002
2011	28.412647060019484
2012	28.267741297599123
2013	28.1367440596096
2014	27.99741884137125
2015	27.84471813398323
2016	27.71344417481557
2017	27.60523193928381
2018	27.470254638655046
2019	27.30503644713195
2020	27.1091437715922
2021	26.879471250639345
2022	26.58862046666252
2023	26.28013381954524