Year	% of working-age population
1960	54.6175200025044
1961	55.190788388465336
1962	55.494945581574456
1963	55.69131301184731
1964	55.99968052391308
1965	56.43866366303969
1966	56.929685368636015
1967	57.42153563727902
1968	57.82868602029296
1969	58.16022900492997
1970	58.425404763270144
1971	58.59661228325319
1972	58.65974954399707
1973	58.59717101289389
1974	58.40575743949486
1975	58.08308512652109
1976	57.631380680759975
1977	57.145535597347155
1978	56.59942661669781
1979	55.899461723919735
1980	54.94335289273211
1981	53.682141035860624
1982	52.32751907301998
1983	51.01171489314566
1984	49.9103263422089
1985	49.290318055660045
1986	48.97140975917433
1987	48.70393279896298
1988	48.522518628112074
1989	48.389472867403335
1990	48.306869617078256
1991	48.20232526752697
1992	48.13201645588967
1993	48.16919890552439
1994	48.193845637339024
1995	48.229712519198124
1996	48.26290052485838
1997	48.28284732390261
1998	48.3288287655717
1999	48.45230028636737
2000	48.678591288755655
2001	48.939087617207676
2002	49.1610516057689
2003	49.32605750398236
2004	49.5349858128003
2005	49.83693463980824
2006	50.10827487849768
2007	50.24429153177242
2008	50.41903117332163
2009	50.74804345477655
2010	51.03245264732081
2011	51.409631594072216
2012	51.994289318256335
2013	52.64536733392651
2014	53.32525024840356
2015	53.919808768294594
2016	54.45222668187226
2017	54.991310439207155
2018	55.494323278042515
2019	55.98111457296043
2020	56.42961115988792
2021	56.84019116331884
2022	57.30220370616024
2023	57.85311445717272