Year	% of working-age population
1960	79.70403432749458
1961	80.00251216495231
1962	80.35279436449598
1963	80.81465299154043
1964	81.3982749800228
1965	81.9581583288566
1966	82.44482780129127
1967	82.91644722574618
1968	83.36816007264895
1969	83.81386268780305
1970	84.26884363404733
1971	84.73150778487492
1972	85.1907071423033
1973	85.57790673316994
1974	85.87618095511397
1975	86.1611534471546
1976	86.46446752021893
1977	86.72099657188744
1978	86.91549044194669
1979	87.12809442782368
1980	87.33239008788556
1981	87.57518531940893
1982	87.83943199994057
1983	88.0440393784294
1984	88.21098374085138
1985	88.34280281657988
1986	88.4396049969646
1987	88.53383808633588
1988	88.57180428641462
1989	88.54618307474712
1990	88.50424728975224
1991	88.42497104097092
1992	88.31223654432502
1993	88.18020780337058
1994	87.7900126699852
1995	87.28894090271731
1996	86.98941803568843
1997	86.66726251021629
1998	86.15766398517034
1999	85.58721210950247
2000	85.07300680485439
2001	84.59146591228146
2002	84.13629021774949
2003	83.70365199308064
2004	83.30419999996762
2005	82.97579745295722
2006	82.70930385767248
2007	82.47058994780794
2008	82.26181469964575
2009	82.0645005719654
2010	81.84901116923804
2011	81.62081226814223
2012	81.40327924575978
2013	81.15054784342003
2014	80.79711894586335
2015	80.33963332455836
2016	79.87053973273241
2017	79.36499555121446
2018	78.76651015180767
2019	78.11432734979896
2020	77.39624483104389
2021	76.64050336269646
2022	75.8559869718573
2023	75.00574112852675