Year	% of working-age population
1960	54.04394768079482
1961	54.192088649237
1962	54.097445203311246
1963	54.11432094041621
1964	54.53326775017763
1965	55.2579276656643
1966	56.07096754662837
1967	56.91667456577355
1968	57.69333711755223
1969	58.38139212220853
1970	59.0655436369096
1971	59.68534034373635
1972	60.068635419746585
1973	60.15718764404328
1974	60.03866089559532
1975	59.701294517859914
1976	59.11115709193139
1977	58.37179672502742
1978	57.615312590241786
1979	56.871214387886305
1980	56.14623887371507
1981	55.36091088422121
1982	54.41277050067167
1983	53.406928081767724
1984	52.71091297012873
1985	52.49544598988908
1986	52.45986098090388
1987	52.49182238436839
1988	52.65966671267418
1989	52.89739171432149
1990	53.24392522826612
1991	53.68493100825524
1992	54.12097148640023
1993	54.42090209335241
1994	54.51544031700665
1995	54.45245795679039
1996	54.338560511689
1997	54.21753164645836
1998	54.01072187161061
1999	53.70104177320803
2000	53.31955069630763
2001	52.91583819552519
2002	52.49274047175278
2003	52.0662512637754
2004	51.6995315787802
2005	51.31580747141453
2006	50.928305976468145
2007	50.73338853611432
2008	50.80203819315003
2009	51.06600454006246
2010	51.44819841003236
2011	52.03823148474903
2012	52.89336021911152
2013	53.744960569337266
2014	54.44889525151084
2015	55.08657165014335
2016	55.70103119229801
2017	56.29770300165147
2018	56.81475123177159
2019	57.24454908541647
2020	57.50725822029887
2021	57.67227560615441
2022	57.81982679931097
2023	57.91533824864751