Year	% of working-age population
1960	66.79315100355755
1961	67.2868071752235
1962	67.00720242621611
1963	66.73897173539972
1964	66.83270181782517
1965	67.04156588518842
1966	66.20257174635086
1967	64.94024145129085
1968	63.91969589566663
1969	62.66637212712993
1970	61.51711463315899
1971	60.32974000132395
1972	59.00408668743784
1973	57.64662613314301
1974	56.37740731605456
1975	55.178313982046554
1976	54.07103862379722
1977	53.12504154223926
1978	52.270272910524305
1979	51.51641537347199
1980	50.94606296097963
1981	50.622332084072376
1982	50.44616069338962
1983	50.22483509288425
1984	50.090132043993385
1985	50.02211799080304
1986	49.911906863373666
1987	49.96581608296894
1988	50.398120523899884
1989	50.870016237877635
1990	51.15129739685498
1991	51.53986277232523
1992	51.94994152349409
1993	52.174438056167816
1994	52.31097988358895
1995	52.31395134033766
1996	52.1391787102512
1997	51.88890888087666
1998	51.63265156137123
1999	51.33556428551621
2000	50.92752639894636
2001	50.562259402706225
2002	50.21193538615651
2003	49.85838305097509
2004	49.52214190840644
2005	49.189346086059395
2006	48.90161868304169
2007	48.7497917249543
2008	48.824070508556915
2009	48.94928111682553
2010	49.020334841905374
2011	49.28494493673531
2012	49.76039017920271
2013	50.2133873115596
2014	50.509380547745586
2015	50.65893740144243
2016	51.163619470079105
2017	51.79623725867389
2018	52.2272039961361
2019	52.736350045620654
2020	53.22089377019472
2021	53.66159493915216
2022	54.05367293774063
2023	54.4705756026574