Year	% of working-age population
1960	67.14132647598944
1961	67.63490930620448
1962	67.39112053239586
1963	67.12597968660677
1964	67.15919083308539
1965	67.2683016587149
1966	66.39318244578598
1967	65.10652479361934
1968	64.03078353944278
1969	62.74392515471564
1970	61.52403107048213
1971	60.25916112500143
1972	58.89298009380212
1973	57.5051123727446
1974	56.19900492672788
1975	54.96756002105915
1976	53.83478640916323
1977	52.86108083744554
1978	51.97914399348401
1979	51.19849292452119
1980	50.60045648052655
1981	50.24970908420648
1982	50.05458309343268
1983	49.83362440653337
1984	49.699546511723696
1985	49.63081491637039
1986	49.530947741085406
1987	49.59299322608706
1988	50.0032251643828
1989	50.4468668729545
1990	50.72619674712595
1991	51.10926105509382
1992	51.511385991014535
1993	51.734869870926445
1994	51.862310700691516
1995	51.85921948012172
1996	51.68950802998085
1997	51.44662507153061
1998	51.19127424175039
1999	50.88736703610227
2000	50.47632244890675
2001	50.10260343634544
2002	49.74390846721586
2003	49.3864925661882
2004	49.04393094706876
2005	48.70373913112679
2006	48.414319194932176
2007	48.264774451564506
2008	48.33291438992982
2009	48.45397732915114
2010	48.53529293422191
2011	48.81235319116056
2012	49.303564423557134
2013	49.78680865245683
2014	50.132379780305406
2015	50.35073115012487
2016	50.886290615633754
2017	51.52786984234261
2018	51.979503492656285
2019	52.503686925298496
2020	53.01838893168899
2021	53.50042638440923
2022	53.936345895172565
2023	54.39155328521038