Year	% of working-age population
1960	52.10740158398019
1961	53.45982515067057
1962	54.46859298959191
1963	55.28966093332064
1964	56.37506805338632
1965	57.54021605288025
1966	58.68418577455259
1967	59.815102303790454
1968	60.87623875039241
1969	61.81067877349239
1970	62.40244981937367
1971	62.641624646385615
1972	62.56608380894426
1973	62.219074544158694
1974	61.88238055989841
1975	61.51575688320722
1976	60.7006572232641
1977	59.60942620634504
1978	58.449876893040575
1979	57.21074403829154
1980	55.776352735514386
1981	53.99654557599539
1982	52.104970169983304
1983	50.23597580540217
1984	48.78693756757847
1985	48.062268878517436
1986	47.772786812920806
1987	47.7239036580778
1988	47.85847114687376
1989	47.99517298550031
1990	48.07348352857635
1991	48.198866372621715
1992	48.38044333354213
1993	48.6086885416931
1994	48.88409875431488
1995	49.10509121299352
1996	49.13960554073344
1997	48.993940794660176
1998	48.76479248282455
1999	48.44807286290897
2000	48.059013184472846
2001	47.61793494401479
2002	47.16863663429619
2003	46.80492230915495
2004	46.933479428330806
2005	47.50906577394468
2006	47.99108900683985
2007	48.173306328495315
2008	48.17283390496635
2009	48.21347743753176
2010	48.061878129875666
2011	47.85048283376173
2012	47.979290600917686
2013	48.27405744340814
2014	48.53148350458524
2015	48.702366227300075
2016	48.92916774982634
2017	49.28688163927032
2018	49.662356904386115
2019	50.049112801281645
2020	50.495086936415404
2021	51.11825134893293
2022	51.94133374828576
2023	52.851083729323