Year	% of working-age population
1960	77.3908432735855
1961	79.44420497907967
1962	80.44395795174441
1963	80.48671107300666
1964	79.98197407039356
1965	79.1863575490722
1966	78.10071747598396
1967	76.6967932769025
1968	74.89805623855345
1969	72.6171707645702
1970	69.91401724118693
1971	67.14796476806995
1972	64.5358851903738
1973	61.93039848484212
1974	59.37310125971691
1975	56.90417401817959
1976	54.60255713587642
1977	52.411174095315104
1978	50.24476935863604
1979	48.31879590302309
1980	46.84231514928284
1981	45.973396761009326
1982	45.5436191365083
1983	45.213438066189475
1984	44.93341209322307
1985	44.75028837572572
1986	44.42209334394684
1987	43.814420768446546
1988	43.15418455585216
1989	42.551113907771224
1990	42.11272507409568
1991	41.86853088624916
1992	41.69482201366651
1993	41.48754940735155
1994	41.21885201713139
1995	40.93552578110244
1996	40.69744206383909
1997	40.46581236635098
1998	40.19482489412063
1999	39.824730684173
2000	39.3257471015441
2001	38.94070824313662
2002	38.69867464953607
2003	38.32337064469319
2004	37.716746283261834
2005	36.95152404099058
2006	36.17799596655277
2007	35.56984505013084
2008	35.11301330293624
2009	34.71396751508838
2010	34.33269114037634
2011	34.17969483777418
2012	34.531822634220426
2013	35.248020328744495
2014	36.15826338181757
2015	37.17014491161347
2016	38.444517368025664
2017	39.99091115655533
2018	41.57163780182706
2019	43.24893210581788
2020	44.93593157613612
2021	46.578023716728
2022	48.177229309480616
2023	49.79516734063005