Year	% of working-age population
1960	55.624974616540534
1961	55.844109219444725
1962	56.08642537995944
1963	56.393510850031426
1964	56.765218172501285
1965	57.11092081053975
1966	57.407245886349386
1967	57.655943503861685
1968	57.84808871625388
1969	57.98041558506646
1970	58.04335980733002
1971	58.07156089843275
1972	58.10364355860781
1973	58.15660644228265
1974	58.3166523898503
1975	58.60985177547455
1976	58.99799870319927
1977	59.40012261851342
1978	59.724806201550386
1979	59.93722660369385
1980	60.01133283819882
1981	59.99132638365218
1982	59.91624100089964
1983	59.791292761335136
1984	59.678154769582406
1985	59.662894832289496
1986	59.68438075935543
1987	59.62670101220533
1988	59.56078480166106
1989	59.47603706895398
1990	59.24566763395595
1991	58.960366046871236
1992	58.778280064584045
1993	58.70741215729699
1994	58.75712428657598
1995	58.9694904235784
1996	59.23660362441537
1997	59.474526636102595
1998	59.67560620735186
1999	59.81758461678683
2000	59.9039475908214
2001	59.95804476388186
2002	60.04956713466626
2003	60.05471506438788
2004	59.87507381519377
2005	59.70283031810452
2006	59.51195037401934
2007	59.19445568344099
2008	58.81232291381043
2009	58.36286714425886
2010	57.858551025433734
2011	57.36704279048168
2012	56.92928824598987
2013	56.554883201272744
2014	56.21766347490895
2015	55.95828729117177
2016	55.75931483104613
2017	55.473794966431065
2018	55.08935290925868
2019	54.64662634966988
2020	54.16627515367915
2021	53.59855540447912
2022	53.08712984385783
2023	52.74374531196803