Year	% of working-age population
1960	5.301125112873955
1961	5.348770426262547
1962	5.39252309502408
1963	5.431750780553041
1964	5.4734770222067315
1965	5.518768727030012
1966	5.564571518781522
1967	5.611472785607101
1968	5.658538556826761
1969	5.706532253395703
1970	5.755531631906174
1971	5.808273277730288
1972	5.861772529172785
1973	5.910786518810068
1974	5.9578820974308675
1975	6.004705038722754
1976	6.052991833710143
1977	6.095136110265644
1978	6.1313178684793295
1979	6.168936712177745
1980	6.20474824789784
1981	6.240346493990937
1982	6.274111090988874
1983	6.299407801002182
1984	6.322647008761405
1985	6.349021579235806
1986	6.377774690009789
1987	6.414331112453099
1988	6.453803245293193
1989	6.48654731960406
1990	6.50734153885973
1991	6.519860685468558
1992	6.521040085634726
1993	6.52810118744675
1994	6.548204097691301
1995	6.575112655145018
1996	6.6110801444045615
1997	6.647397648849028
1998	6.685966148623117
1999	6.726777134098406
2000	6.771015435486713
2001	6.818004585591362
2002	6.880214464118192
2003	6.960400860131231
2004	7.048155120290198
2005	7.168476450763091
2006	7.3280176287710175
2007	7.503467179488112
2008	7.678814574108263
2009	7.845610771649334
2010	7.997983585428751
2011	8.160124569034263
2012	8.363143952052573
2013	8.60341157516661
2014	8.830954294675568
2015	9.007419742916575
2016	9.139751822258663
2017	9.24645177633696
2018	9.347645137622438
2019	9.446954840574987
2020	9.460197611935168
2021	9.369223146911237
2022	9.360854732874833
2023	9.453008816639587