Year	% of working-age population
1960	73.03043954068362
1961	73.55469885858163
1962	74.34127687287176
1963	75.30304232983447
1964	76.46643372602689
1965	77.77685515260256
1966	79.064149766121
1967	80.17007650488772
1968	81.07931427093379
1969	81.78137616192012
1970	82.3070584616322
1971	82.74498089133928
1972	83.08509714679144
1973	83.27410962426805
1974	83.3103952229021
1975	83.17224975187699
1976	82.88067318656246
1977	82.51857209898542
1978	82.14809042252814
1979	81.56661878771027
1980	80.43857896811681
1981	79.22084695432213
1982	78.63426686550565
1983	78.79825864321968
1984	79.5880224775382
1985	80.28463049730587
1986	80.7001058187829
1987	81.13610557846548
1988	81.61213213322047
1989	82.21200998111509
1990	82.81945770587681
1991	83.37178097894402
1992	84.45270886507714
1993	85.31234449008159
1994	85.45217790310427
1995	85.25202627874047
1996	84.5997325966098
1997	83.74468885152075
1998	82.69355216053262
1999	81.54106734770777
2000	80.04660239911044
2001	78.45685974381229
2002	77.40016241813785
2003	76.51489906438368
2004	75.41010917667556
2005	74.2352621965361
2006	73.04039928373227
2007	71.87324051497495
2008	70.80896855116636
2009	69.7837899960485
2010	68.81091403829925
2011	68.0269837995063
2012	67.53425691674464
2013	67.2380287844738
2014	66.93783867974373
2015	66.63406815296864
2016	66.3349701143197
2017	65.84626894863239
2018	65.16195279461907
2019	64.44828620199357
2020	63.65531526353458
2021	62.782209050813975
2022	61.80708894444899
2023	60.73701486472094