Year	% of working-age population
1960	75.03430792164048
1961	75.84074935011553
1962	76.62988458105495
1963	77.39636207551744
1964	77.96845795323587
1965	78.30072612396283
1966	78.55482139281806
1967	78.73409657996409
1968	78.80289052440128
1969	78.76466157296348
1970	78.63774040787382
1971	78.46030282796121
1972	78.21864510935742
1973	77.90788526278483
1974	77.55259629108313
1975	77.13738193730276
1976	76.7132169238124
1977	76.25260608173917
1978	75.7379961214733
1979	75.2246463440422
1980	74.71382175873396
1981	74.19968570247056
1982	73.72282102020014
1983	73.25850417645258
1984	72.79922467616059
1985	72.33317829027989
1986	71.82062044388105
1987	71.28495807992253
1988	70.7242970455998
1989	70.1294337835777
1990	69.48895577338321
1991	68.79272659382544
1992	68.13267529751948
1993	67.4501647715483
1994	66.65030110867849
1995	65.72690047889292
1996	64.72950886204323
1997	63.66213978111513
1998	62.52961207136191
1999	61.375208669567506
2000	60.236868540243215
2001	59.13761968558094
2002	58.09976240152829
2003	57.08546990930401
2004	56.064697984121636
2005	55.0640652827822
2006	54.076859230849415
2007	53.11445899409547
2008	52.21782190296344
2009	51.3655579984079
2010	50.53382694387596
2011	49.75687053422773
2012	49.03261594340905
2013	48.33953896670586
2014	47.66192477360897
2015	46.97766992101005
2016	46.27882142706473
2017	45.572178930987604
2018	44.88570421581209
2019	44.213095704120356
2020	43.54461304456685
2021	42.902248897779565
2022	42.25934961185201
2023	41.58549509279087
