Year	% of working-age population
1960	84.28668798825565
1961	78.49714706423707
1962	72.01401464451618
1963	66.76343505266
1964	62.78852879459082
1965	59.96751104116961
1966	57.87697840129636
1967	56.24951388348759
1968	55.06311792275325
1969	54.31352955426356
1970	57.30392290682755
1971	61.83576079932396
1972	63.487796648296026
1973	62.98712498604954
1974	61.05242942193202
1975	58.33615457660708
1976	55.31881466629759
1977	52.25928522327414
1978	49.32360569477357
1979	46.651169963047785
1980	44.36125902883956
1981	42.53542497736228
1982	41.11356275211169
1983	39.949543190258154
1984	38.905844928173146
1985	37.9060725723229
1986	37.694028629112935
1987	38.17290230117219
1988	38.4089621024696
1989	38.320854704213914
1990	38.037017257234226
1991	37.657655459339765
1992	37.25609217078705
1993	36.87109920487902
1994	36.505733169594194
1995	36.139946277409756
1996	35.72502317176705
1997	34.95383928128257
1998	33.77985142489403
1999	32.537302980299124
2000	31.415750523314266
2001	30.47522852577763
2002	29.781696069202958
2003	29.19042687154731
2004	29.180764100513723
2005	27.28169035448299
2006	22.29033424965866
2007	18.728430983040813
2008	17.233977684564582
2009	16.35586281516327
2010	16.193493492671905
2011	16.671680427864157
2012	17.179756300537825
2013	17.4219614833745
2014	17.017799046126996
2015	16.328525545115408
2016	16.05826781901961
2017	16.176988497670987
2018	16.487998562365487
2019	17.319237559598694
2020	18.408925634482703
2021	19.036514116606266
2022	19.128116833978012
2023	18.973794879168516