Year	% of working-age population
1960	74.56409942388574
1961	74.8474453257904
1962	75.25196003711774
1963	76.02057797783951
1964	76.68435847154333
1965	77.03609245734339
1966	77.20653956394172
1967	77.13534089838885
1968	77.02712637720245
1969	76.9272130328812
1970	76.7158169987278
1971	76.48927901778627
1972	76.16526881052484
1973	75.81160823729948
1974	75.6270425079417
1975	75.4618089957215
1976	75.25240369573865
1977	74.67757409493957
1978	73.55081957113201
1979	72.43033451815018
1980	71.48132228904622
1981	70.59773095340027
1982	69.86765040074721
1983	69.09469639389197
1984	68.29412650782169
1985	67.61126640229301
1986	67.02207669206209
1987	66.5542023714835
1988	66.14739333591703
1989	65.80300635758373
1990	65.56139925359679
1991	65.29833347638849
1992	65.0318934970478
1993	64.77645145591896
1994	64.39559061138134
1995	63.886408045177596
1996	63.2981504695764
1997	62.60657742941142
1998	61.88070803867024
1999	61.16581572280656
2000	60.44625950654593
2001	59.719842619475344
2002	58.989139811246616
2003	58.288492785810114
2004	57.6046322849312
2005	56.923882359860855
2006	56.334293901607026
2007	55.86908145786537
2008	55.48378318989651
2009	55.166474302696024
2010	54.89405399495966
2011	54.71132971337626
2012	54.664765486469484
2013	54.70355661296685
2014	54.78406720776934
2015	54.87671945454579
2016	54.97853759256065
2017	55.11510899534131
2018	55.236417837473525
2019	55.32251578592193
2020	55.354698484731024
2021	55.28994720536876
2022	55.189617238529195
2023	55.085107568862036