Year	% of working-age population
1960	12.603648424543948
1961	12.292222450235995
1962	12.103980503655565
1963	12.055455093429778
1964	12.159745678521757
1965	12.294440093970243
1966	12.454282964388835
1967	12.577903682719546
1968	12.768319763138416
1969	13.019038984587489
1970	12.806255430060817
1971	12.210526315789473
1972	11.674669867947179
1973	11.244419642857142
1974	10.881703674847422
1975	10.597793136898266
1976	10.450307027518763
1977	10.453670019259578
1978	10.51567239635996
1979	10.61447166921899
1980	10.502985344671611
1981	10.184552289815448
1982	9.916020671834627
1983	9.671504965622614
1984	9.453492580528412
1985	9.272614877395426
1986	9.117032392894462
1987	9.029247044181705
1988	8.999583902989954
1989	8.915388983532084
1990	8.69588628042214
1991	8.38624473002489
1992	8.092402266833156
1993	7.855548977640147
1994	7.677651236305374
1995	7.5271481068582515
1996	7.413983585858586
1997	7.364004082712736
1998	7.379846086830259
1999	7.394858180802013
2000	7.384314650669004
2001	7.350260416666667
2002	7.289472857008142
2003	7.227891156462585
2004	7.1843634442683575
2005	7.1311056901344525
2006	7.077218488547524
2007	7.033468694428962
2008	6.985530340024158
2009	6.994017946161516
2010	7.074843117776755
2011	7.190761819298162
2012	7.367110783274169
2013	7.566448360452817
2014	7.804974599195091
2015	8.132128254788034
2016	8.483724068139653
2017	8.835939439066767
2018	9.20264093448451
2019	9.57992928909574
2020	9.959705159705159
2021	10.38000311477963
2022	10.872431174873983
2023	11.412634382660054