Year	% of working-age population
1960	5.805751130279442
1961	5.944008933985638
1962	6.07770753942681
1963	6.181754013753908
1964	6.265126230617855
1965	6.352142927351945
1966	6.422364927041886
1967	6.4879559875059725
1968	6.554907402784857
1969	6.606352589302504
1970	6.65731029011488
1971	6.717431518739458
1972	6.771895187465889
1973	6.840904292225868
1974	6.925711122339197
1975	7.023772243556992
1976	7.1105144554018365
1977	7.201340806682054
1978	7.319109280732337
1979	7.417934434379103
1980	7.5031705371074935
1981	7.6073619970211
1982	7.723878484678043
1983	7.8288421446159715
1984	7.9369636556629555
1985	8.075285034034172
1986	8.242837267373202
1987	8.435739188553166
1988	8.654762872266287
1989	8.915887690724077
1990	9.213851226588982
1991	9.548852899592896
1992	9.923933888163003
1993	10.300939894409398
1994	10.657457457545249
1995	10.981878389192069
1996	11.270145251867083
1997	11.540269213513968
1998	11.788541701458946
1999	12.011510333430863
2000	12.243199052471224
2001	12.476391012812767
2002	12.694284498589543
2003	12.894360980291712
2004	13.07459252444666
2005	13.248923961612933
2006	13.425939023841755
2007	13.597400682162924
2008	13.786776298204678
2009	14.015756252332087
2010	14.24778321106093
2011	14.506026866080349
2012	14.811547831783736
2013	15.16858848424609
2014	15.565922666755105
2015	15.997713900819765
2016	16.44411518812675
2017	16.836350656776577
2018	17.19223390074816
2019	17.560804441791248
2020	17.968371005621044
2021	18.415319899357673
2022	18.98185503720648
2023	19.708310675767855