Year	% of working-age population
1960	88.63411318231964
1961	88.91209998379225
1962	89.07035397449691
1963	89.00454351366761
1964	88.59329750979362
1965	88.02085475741917
1966	87.51475370796217
1967	87.03557213322203
1968	86.51923552578735
1969	85.92479626709093
1970	87.28020794627925
1971	89.5231272972836
1972	90.13901811414092
1973	90.1260087427843
1974	89.5509910878181
1975	88.60988307060899
1976	87.55555634854505
1977	85.43199794926267
1978	83.25005733102411
1979	80.80280546022675
1980	80.26282080175176
1981	80.94855630000666
1982	80.62944857761485
1983	80.88524920221595
1984	81.87552136340737
1985	83.21433406152856
1986	83.88233743909343
1987	84.23911361169876
1988	85.37716509786806
1989	87.18222323944369
1990	89.15437204114912
1991	91.55740487619595
1992	92.79575231828886
1993	92.95209740102199
1994	93.61570018889462
1995	93.60420657045255
1996	92.2322613473056
1997	90.20907147784642
1998	84.63814153577603
1999	79.04397868385954
2000	76.19970104251283
2001	73.40099867751823
2002	70.71366552823845
2003	68.14809886301536
2004	65.79862639192807
2005	63.64932306445876
2006	61.60851419061747
2007	59.7447097371679
2008	58.07049066408504
2009	56.67067352255536
2010	55.625215746872605
2011	54.940958464143975
2012	54.70378113323304
2013	54.525817175599656
2014	54.24571714824032
2015	54.09076744128869
2016	53.97531993227862
2017	53.854728785762006
2018	53.76165464848881
2019	53.70162810773431
2020	53.60541626517074
2021	53.44841748271685
2022	53.26729894901949
2023	53.07973960365986