Year	% of working-age population
1960	79.03680586971038
1961	79.29476481403825
1962	79.83105530803958
1963	80.85745008983686
1964	81.68665190429327
1965	82.05758733299922
1966	82.24223746465181
1967	82.13343909239829
1968	81.96076907350638
1969	81.83496382487098
1970	81.57650617140055
1971	81.33009970143422
1972	80.96520332445155
1973	80.58520619605365
1974	80.43695242047339
1975	80.32568531015464
1976	80.17063123740118
1977	79.55451936653931
1978	78.25077451351811
1979	76.97110088586304
1980	75.92317714227107
1981	74.96253326370957
1982	74.19408991157775
1983	73.3847414695629
1984	72.51109917334638
1985	71.72925308077176
1986	71.03940888725693
1987	70.48671809647657
1988	69.9779707770106
1989	69.53865099052386
1990	69.20683516120484
1991	68.85330730702711
1992	68.48537704094363
1993	68.13542614800066
1994	67.64167427598485
1995	67.00150866795859
1996	66.27584360196491
1997	65.42758547630572
1998	64.53927663715953
1999	63.6643889607177
2000	62.78403931361691
2001	61.890177188616605
2002	60.996044244069
2003	60.147608879900154
2004	59.321363167494276
2005	58.49969905548774
2006	57.79257143336951
2007	57.2342585526609
2008	56.7553788287285
2009	56.341380663851965
2010	55.983139569422114
2011	55.707312658684145
2012	55.54896661493477
2013	55.471987795095316
2014	55.449962048593285
2015	55.46276377598209
2016	55.48296647940261
2017	55.54167633494153
2018	55.598329573246524
2019	55.611135373818875
2020	55.55635310647919
2021	55.39472052646049
2022	55.2088393645827
2023	55.01561324702511