Year	% of working-age population
1960	55.18397861703883
1961	55.6221029261791
1962	55.74007608247217
1963	55.73378354463835
1964	55.814121427842
1965	55.99161424519863
1966	56.18774861187286
1967	56.38056331612447
1968	56.5252116978727
1969	56.62623643630417
1970	56.679615568466836
1971	56.69923924935287
1972	56.714436866232525
1973	56.70104338997466
1974	56.67191513430695
1975	56.612895511182224
1976	56.48749218314796
1977	56.33426205913039
1978	56.08807710514565
1979	55.69478118513046
1980	55.04594494534429
1981	54.07852654689124
1982	52.925796701883456
1983	51.70876412042743
1984	50.73669110168889
1985	50.241902545236876
1986	50.00922414533487
1987	49.81916116964637
1988	49.67955146215504
1989	49.52847844282278
1990	49.36704841671435
1991	49.16829446476466
1992	48.98589378430954
1993	48.89151860464895
1994	48.789996999337205
1995	48.69328487162019
1996	48.59212778503515
1997	48.47650553448321
1998	48.369725019890204
1999	48.31015982924834
2000	48.317342008500326
2001	48.35399296862638
2002	48.38261158793172
2003	48.374820553165776
2004	48.41615951395357
2005	48.55520562249009
2006	48.70077288715075
2007	48.78043455295796
2008	48.931955437180285
2009	49.24394304211203
2010	49.55009018644097
2011	49.96124419018843
2012	50.58542802161178
2013	51.282824913746886
2014	52.02054432615899
2015	52.70326624232248
2016	53.352432330079495
2017	54.02165839727953
2018	54.6662138047381
2019	55.29177401085884
2020	55.86258645312238
2021	56.349231769884085
2022	56.573273897718
2023	56.92382897137131