Year	% of working-age population
1960	3.066103306366635
1961	3.2750361911788546
1962	3.5159499330825477
1963	3.789501903155046
1964	4.077572062988581
1965	4.368938349281076
1966	4.668263676323947
1967	4.975222476859431
1968	5.294186412481453
1969	5.595837820935969
1970	5.772397581425752
1971	5.857525453990712
1972	5.956883524541269
1973	6.084755079253071
1974	6.23163650272084
1975	6.389397830100438
1976	6.566643770513967
1977	6.7450734651473425
1978	6.910664067062597
1979	7.045253659740203
1980	7.135753326272992
1981	7.203195122412956
1982	7.274839487972893
1983	7.360208367928725
1984	7.443105546997386
1985	7.505822219598901
1986	7.545270904717976
1987	7.5759208602081225
1988	7.605783949933945
1989	7.639877307252734
1990	7.678584866423247
1991	7.718302835169931
1992	7.761138944626624
1993	7.807871891479574
1994	7.870811336016886
1995	7.963713804373099
1996	8.067217605112328
1997	8.15804330475676
1998	8.238162254254709
1999	8.319737101723398
2000	8.468716179248485
2001	8.725967295202905
2002	9.003937486375062
2003	9.19680943569141
2004	9.271991290096834
2005	9.261481268701674
2006	9.20471131711473
2007	9.121080752272503
2008	9.033180421634158
2009	8.998112447570843
2010	9.168145188086733
2011	9.577554541899143
2012	10.049313217148532
2013	10.472339945251791
2014	10.857559590854414
2015	11.386026420550106
2016	12.264095071518355
2017	13.417385347640822
2018	14.717163110180357
2019	16.132397433503836
2020	17.610782313445753
2021	19.119946847257594
2022	20.696405234393346
2023	22.341356520273354