Year	% of working-age population
1960	78.68728025081005
1961	79.558194933179
1962	80.48068543315607
1963	81.4323861584395
1964	82.13040057225342
1965	82.46262546774236
1966	82.63621941194903
1967	82.6901931556915
1968	82.66691985911345
1969	82.59592659598276
1970	82.4393420584837
1971	82.2783403039809
1972	82.13718304906051
1973	81.96776870958104
1974	81.78883030736779
1975	81.53579286519276
1976	81.22724542621792
1977	80.87588415907778
1978	80.46681436634837
1979	80.05659077712366
1980	79.64085970423196
1981	79.24393315791528
1982	78.89212910578138
1983	78.57168118421328
1984	78.30361914388031
1985	78.01733417761918
1986	77.67458309814927
1987	77.28026204758606
1988	76.82205138477464
1989	76.33758161167648
1990	75.82218868913043
1991	75.28087407986808
1992	74.8157750682448
1993	74.34648492754611
1994	73.76277574512736
1995	73.08382579781556
1996	72.3002758201836
1997	71.46317654610411
1998	70.60121493890196
1999	69.71410397106322
2000	68.78371925765704
2001	67.85869432555009
2002	67.03599620098375
2003	66.24108926755333
2004	65.37148347405612
2005	64.4602080951896
2006	63.53798769805678
2007	62.64811851990519
2008	61.77038798035778
2009	60.859894228461556
2010	59.938770709796046
2011	59.01722091078527
2012	58.1335481427213
2013	57.30118880102153
2014	56.50914667125254
2015	55.7693300719503
2016	55.04501213687975
2017	54.310684189397165
2018	53.61907959419468
2019	52.980282333497144
2020	52.32661588223377
2021	51.660404648205
2022	51.03008196267776
2023	50.503732092366455