Year	% of working-age population
1960	65.30990024519224
1961	66.67255447448862
1962	68.14871461981024
1963	69.64267703765265
1964	71.06333121531438
1965	72.44746936761878
1966	74.86184855447358
1967	78.18931221514394
1968	81.32587213016996
1969	84.18575136148092
1970	86.68616968087457
1971	87.90245290037417
1972	87.84767190872648
1973	87.48456989860081
1974	86.8826354429645
1975	85.94516643480031
1976	83.89145169512325
1977	81.1655252053541
1978	78.79494343856402
1979	76.83143200221373
1980	75.3641120033996
1981	73.63525278247826
1982	71.56788153880807
1983	69.72309966476318
1984	68.65690792042754
1985	67.86537882201137
1986	67.92573732809329
1987	68.92705172186304
1988	69.39576469614794
1989	69.21519068755326
1990	67.67717114806483
1991	63.848478880716506
1992	61.40386521061464
1993	56.896334156567576
1994	52.5897184852111
1995	50.857035051535114
1996	49.896552846930774
1997	48.550186249813414
1998	46.913122710467434
1999	45.14026003342801
2000	43.34472001143854
2001	41.61695870464689
2002	40.021242240187775
2003	38.57789090525428
2004	37.256890312070176
2005	36.16978247229887
2006	35.39670154404587
2007	34.777599156957514
2008	34.18360709840408
2009	33.55688762359942
2010	33.026245439215984
2011	32.536538108062075
2012	32.01105658606128
2013	31.53830337528542
2014	31.62022710318177
2015	31.676006542123762
2016	31.84238655705221
2017	32.177577739047514
2018	32.07841272842361
2019	32.207427324019385
2020	33.25909072155812
2021	34.368511954838226
2022	34.49177997516129
2023	34.357249155690276