Year	% of working-age population
1960	70.26165597402452
1961	69.14439867303416
1962	68.04367353922491
1963	67.21481429768221
1964	66.4437401059243
1965	66.31230821455098
1966	66.9776100829293
1967	67.60886723061152
1968	68.18676615469096
1969	68.6819869211128
1970	69.07439866799199
1971	69.35019008590896
1972	69.49365974736088
1973	69.51645808229637
1974	69.44684528954191
1975	69.69969769393617
1976	70.23127513548816
1977	70.49215014176295
1978	70.27661288082872
1979	69.58736961798343
1980	68.80961208818962
1981	68.2813920149663
1982	67.92972335125214
1983	67.68058078105933
1984	67.65553444629967
1985	67.96918149376442
1986	68.69153645736127
1987	69.93971964225132
1988	71.78008280586356
1989	73.82231921398218
1990	75.46427853162821
1991	76.41755645714767
1992	77.07158180910285
1993	77.83579765111124
1994	78.6141093522438
1995	79.26693434656463
1996	79.71066642677701
1997	79.97018863699726
1998	80.07584085129079
1999	80.05624957159505
2000	80.0577949084632
2001	80.22146621306116
2002	80.50442200107088
2003	80.81167847840571
2004	80.94511439867617
2005	80.68998330841522
2006	80.16481623385303
2007	79.51575661653185
2008	78.67741462490031
2009	77.6983931598861
2010	76.89832909491219
2011	76.24937910250726
2012	75.33725764810822
2013	73.9440171379335
2014	72.1587958966103
2015	70.39732673489374
2016	68.70873550048034
2017	66.92484617909001
2018	65.07330250116935
2019	63.16721351236635
2020	61.253103395842565
2021	59.397052659473495
2022	57.774879602318485
2023	56.43050314503528