Year	% of working-age population
1960	73.43651202172902
1961	73.6653877652756
1962	73.93482062826095
1963	74.50881550504883
1964	75.58024105762007
1965	76.68805364479391
1966	77.63325250302077
1967	78.58174366215805
1968	79.5223700120919
1969	80.40445168295332
1970	81.20720587937984
1971	81.94941581250498
1972	82.64106295476114
1973	83.27770842832547
1974	83.8813066496286
1975	84.44131937109576
1976	84.92286123338857
1977	85.3404808506909
1978	85.70768439494029
1979	86.01439398807491
1980	86.272288523502
1981	86.5068702024976
1982	86.72263595556795
1983	86.93864677254966
1984	87.17111459968604
1985	87.4084492821644
1986	87.64435572825698
1987	87.87824996942352
1988	88.0888477942929
1989	88.23127422947663
1990	88.32641776423206
1991	88.43234472577653
1992	88.57088999359969
1993	88.72219759537509
1994	88.87697299795889
1995	89.03056953345933
1996	89.18281459355701
1997	89.31859079131212
1998	89.4534301694149
1999	89.68555181236023
2000	89.84851270939356
2001	89.85245585734259
2002	89.81985974319488
2003	89.72216972753068
2004	89.51401937017809
2005	89.20801971136736
2006	88.85718753077988
2007	88.43589150525997
2008	87.93216759827558
2009	87.36039651967783
2010	86.7227702523356
2011	85.99820538497023
2012	85.18508314194922
2013	84.20601764181902
2014	83.0094625242163
2015	81.70545612714163
2016	80.36087033433576
2017	78.99392626468543
2018	77.65671017115542
2019	76.41915566919042
2020	75.2305575625115
2021	74.00443243634184
2022	72.7583339656905
2023	71.50783482745119