Year	% of working-age population
1960	4.9859936408427235
1961	4.957916799262583
1962	4.935427163871271
1963	4.9117317692913405
1964	4.885301571466719
1965	4.856661966419562
1966	4.831888428194497
1967	4.816698154007238
1968	4.810803108215802
1969	4.812603360918907
1970	4.81987971448822
1971	4.830966209123235
1972	4.825869306747829
1973	4.823092345355498
1974	4.838828548141897
1975	4.85481407437585
1976	4.871941510922606
1977	4.891996881773837
1978	4.910974725320366
1979	4.92945690250342
1980	4.9530787434739
1981	4.978486350356069
1982	5.002374644518577
1983	5.027248957702312
1984	5.058845424077168
1985	5.097353559667244
1986	5.140476243257414
1987	5.188113103888813
1988	5.235025770337411
1989	5.2755792705489
1990	5.308276302221257
1991	5.333235178641539
1992	5.350733544239738
1993	5.361040141852776
1994	5.3655201640142325
1995	5.366682606643972
1996	5.397481775807351
1997	5.462399843563586
1998	5.532388273067892
1999	5.6088702009723646
2000	5.691601619065172
2001	5.772468157347457
2002	5.846478054211309
2003	5.913533115149707
2004	5.979644897344702
2005	6.022346163873318
2006	6.048031162045125
2007	6.092423262465214
2008	6.1579032198217085
2009	6.240994343470287
2010	6.334142402217198
2011	6.428053391736359
2012	6.526087617182724
2013	6.641734967708141
2014	6.779291755872009
2015	6.9461486094097245
2016	7.131412126257394
2017	7.316847127093971
2018	7.505440736419747
2019	7.6985862248422
2020	7.837605516416366
2021	7.964924104028589
2022	8.146883448547895
2023	8.343928722376722