Year	% of working-age population
1960	4.480803341341484
1961	4.543743642149754
1962	4.604998509836994
1963	4.662792593755191
1964	4.717383823905054
1965	4.7702861563709975
1966	4.823574897657322
1967	4.876186469864792
1968	4.9295296757407705
1969	4.980880982947503
1970	5.036541085101463
1971	5.099274845300823
1972	5.160918210315608
1973	5.219564058756583
1974	5.278525059537831
1975	5.341167641151479
1976	5.406823667728899
1977	5.474453898415177
1978	5.544985046834801
1979	5.618372725235823
1980	5.693244903601254
1981	5.775372274071323
1982	5.866151789600262
1983	5.9633905922620825
1984	6.066371239129711
1985	6.171508114353281
1986	6.281816121258639
1987	6.394776194481756
1988	6.50622502286401
1989	6.616308853914131
1990	6.7241034427012
1991	6.832254756122885
1992	6.938742815287982
1993	7.042066920722948
1994	7.142033932614794
1995	7.24161821599897
1996	7.341483097442445
1997	7.447481461610049
1998	7.55856428804126
1999	7.658709195825404
2000	7.751903970203804
2001	7.822814108917055
2002	7.895746028197801
2003	7.981210266576653
2004	8.066815652303378
2005	8.171382359031444
2006	8.288790712908039
2007	8.422850851636767
2008	8.565066535709734
2009	8.713818497120716
2010	8.883393068547852
2011	9.069327911128976
2012	9.266618860427752
2013	9.469852162111083
2014	9.679251504389168
2015	9.904357037000654
2016	10.167153219765611
2017	10.563452213842883
2018	11.201636433259493
2019	11.952592181733543
2020	12.585269885881715
2021	13.132760096726976
2022	13.489336325281764
2023	13.67662137530614