Year	% of working-age population
1960	64.03414093788167
1961	63.61601811841982
1962	63.58677185234842
1963	63.38451481233458
1964	62.49633490978842
1965	61.548783436270526
1966	60.488325944417674
1967	59.1759635824643
1968	57.57169612668874
1969	55.8059010781376
1970	54.037879797180274
1971	52.45973541923238
1972	50.93627203888625
1973	49.37507272722275
1974	47.8899862446938
1975	46.499794981030256
1976	45.19150897480657
1977	44.06775232879668
1978	43.20660779801531
1979	42.533795246343686
1980	41.98960424885078
1981	41.5956674345576
1982	41.263686994642214
1983	40.93197740734965
1984	40.63171408412598
1985	40.342837631213385
1986	40.061492481554126
1987	39.77949643761933
1988	39.46454695249198
1989	39.082775662545274
1990	38.59956024555278
1991	37.850625732075706
1992	37.55079827717749
1993	37.87092812555331
1994	37.98962385523061
1995	37.631094546284324
1996	36.83416513631496
1997	35.78975169708946
1998	34.637799799893074
1999	33.708934426950094
2000	33.15228823582931
2001	32.85776615575507
2002	32.39466085837104
2003	31.664721697801884
2004	30.879846612697058
2005	30.025259649323832
2006	29.158265433953613
2007	28.360760349271093
2008	27.634013580673937
2009	26.935554651749488
2010	26.309162913575506
2011	25.734772968396214
2012	25.251263118413213
2013	24.891700083449646
2014	24.621817634243335
2015	24.396011593477066
2016	24.146671020819042
2017	23.853152953619876
2018	23.542816814834207
2019	23.336990111366905
2020	23.264371855506667
2021	23.227886654001313
2022	23.176407272796244
2023	23.090518186722676