Year	% of working-age population
1960	48.57798740332003
1961	48.94549917974428
1962	49.18184012631576
1963	49.24604696123646
1964	49.251319408409444
1965	49.261176873571394
1966	49.33254760789772
1967	49.51501601886269
1968	49.82999502849106
1969	50.124806511465806
1970	50.34939944083343
1971	50.63164927333395
1972	50.84360502309556
1973	50.84896364742158
1974	50.74572306344878
1975	50.5674486237233
1976	50.31315887764053
1977	50.0775730300708
1978	49.879126833123024
1979	49.6822032000086
1980	49.45574851314885
1981	49.1116055020623
1982	48.714899457569125
1983	48.466446203304855
1984	48.33582581680218
1985	48.21236964686477
1986	48.24851360436188
1987	48.54087869629737
1988	48.996752705283434
1989	49.5014011443473
1990	49.98732811289131
1991	50.493453550299215
1992	51.01558424904299
1993	51.4009947745101
1994	51.50847807049441
1995	51.38952347185315
1996	51.154316028537714
1997	50.78115993946073
1998	50.13621177395511
1999	49.364080730349606
2000	48.74750024659836
2001	48.21793109921254
2002	47.748002993112
2003	47.50931299796655
2004	47.44070929295469
2005	47.395784984294586
2006	47.43665663753633
2007	47.58179351125044
2008	47.88545564330168
2009	48.32707935967066
2010	48.76301155250685
2011	49.36803319049508
2012	50.25588982371706
2013	51.377832533063774
2014	52.58006354881566
2015	53.68624342325119
2016	54.819785903172104
2017	55.97980070543338
2018	56.92045002080414
2019	57.892687337627244
2020	58.857250329132974
2021	59.340515320699325
2022	59.78593558172673
2023	60.45186611993203