Year	% of working-age population
1960	63.17375574885559
1961	63.62054767209065
1962	63.62255581361201
1963	63.48014627251568
1964	63.47378544890896
1965	63.5994793941353
1966	63.569186786355246
1967	63.48458014230588
1968	63.414061524521934
1969	63.19724249999509
1970	62.934606512033916
1971	62.58984900598297
1972	62.216041014436044
1973	61.79658841153815
1974	61.33599894997643
1975	60.81705031675879
1976	60.24597649103454
1977	59.69048804136307
1978	59.10797173818857
1979	58.46998217274629
1980	57.75828386031209
1981	57.010794545005744
1982	56.25129953104215
1983	55.403192822338575
1984	54.661296255480345
1985	54.1556002834669
1986	53.729918348644915
1987	53.343567326828044
1988	53.077950506454485
1989	52.845819895025635
1990	52.62061547986484
1991	52.45842590331127
1992	52.347423085637075
1993	52.2473757007812
1994	52.12964824613031
1995	51.982547527334226
1996	51.80504864669492
1997	51.62051618932017
1998	51.438752239183636
1999	51.26317854228457
2000	51.09793244494616
2001	50.97126818614744
2002	50.83925704775821
2003	50.669423906802926
2004	50.50442038957585
2005	50.38073879851066
2006	50.292674389660625
2007	50.23665689313684
2008	50.26950028209291
2009	50.36806112087572
2010	50.426776257803084
2011	50.579130551303656
2012	50.95803986760287
2013	51.43800436873206
2014	51.89872104885735
2015	52.27935652677803
2016	52.6954669689533
2017	53.13272479740348
2018	53.510345440345525
2019	53.88523657948319
2020	54.21379737251163
2021	54.48768026799647
2022	54.686321001192916
2023	54.955378498896984