Year	% of working-age population
1960	52.12558765709522
1961	52.17678883462521
1962	52.40674757197931
1963	52.418623923493136
1964	52.57785539172406
1965	53.00850727855394
1966	53.47312574444685
1967	53.74478988655527
1968	53.805210764641586
1969	53.788032005742124
1970	54.14040250380309
1971	54.59816016863628
1972	54.55296333506953
1973	54.31950968878449
1974	54.07878144369474
1975	53.85227042969242
1976	53.53244995490862
1977	53.03737019837538
1978	52.379975145648785
1979	51.53911379556744
1980	50.56300830199289
1981	49.50646265570173
1982	48.488952268372145
1983	47.60246133949795
1984	46.88442130848878
1985	46.416140982417254
1986	46.17148797895027
1987	46.02659046485233
1988	46.0182843227468
1989	46.12171150399834
1990	46.3221081828373
1991	46.52870226434984
1992	46.82581528859515
1993	47.2410858668387
1994	47.57400967003139
1995	47.84768218873855
1996	48.107650073175776
1997	48.31498428016066
1998	48.44082869638489
1999	48.526695860602594
2000	48.560149878409895
2001	48.227862193279506
2002	47.75068574057143
2003	47.44747574370144
2004	47.19142908020807
2005	46.972176500661334
2006	46.818067410951535
2007	46.71373894296633
2008	46.64517645723332
2009	46.73922559260709
2010	46.95992257704405
2011	47.2540328118783
2012	47.592249989479924
2013	47.940074495394924
2014	48.3034205425251
2015	48.64925353177652
2016	49.02314846701717
2017	49.50178982784858
2018	50.054307550097676
2019	50.59279812445669
2020	51.024509625659476
2021	51.58640266095467
2022	52.33626268100407
2023	53.06549479378361