Year	% of working-age population
1960	46.35066812237276
1961	46.61283856364828
1962	46.369550005099875
1963	45.95464909267693
1964	45.562057125099344
1965	45.22732942783865
1966	44.73177656855232
1967	44.13772866261315
1968	43.630056077805214
1969	43.07591224916829
1970	42.470200294746675
1971	41.84686950406955
1972	41.233239427031194
1973	40.57544000478911
1974	39.90387501480625
1975	39.22135525179629
1976	38.51996176346275
1977	37.83394793185074
1978	37.15249471646121
1979	36.50478773822629
1980	35.9189349926174
1981	35.412164120824265
1982	34.925408383360065
1983	34.418476303307635
1984	33.945854630458335
1985	33.50215038336297
1986	33.0743143772696
1987	32.69243947188264
1988	32.38522786135872
1989	32.08885020085171
1990	31.778555343640758
1991	31.496019824943247
1992	31.234352764352206
1993	30.954420882295828
1994	30.62667582889223
1995	30.250045984954223
1996	29.852301153854906
1997	29.451598965003644
1998	29.029754504869913
1999	28.60046654320274
2000	28.178085911188585
2001	27.749230775925458
2002	27.31578541035746
2003	26.919453558974094
2004	26.56524024063727
2005	26.215230209105535
2006	25.886991669720384
2007	25.614676011926633
2008	25.41772776560223
2009	25.274313325380422
2010	25.149358351091333
2011	25.088829996293086
2012	25.103973584842596
2013	25.148909420573204
2014	25.199136149482065
2015	25.23834489878406
2016	25.28862737959724
2017	25.340129935239943
2018	25.335932580552804
2019	25.29653687487068
2020	25.246464970993703
2021	25.157371871319196
2022	24.969404124803543
2023	24.73820800033614