Year	% of working-age population
1960	10.265244774266444
1961	10.22378360585027
1962	10.210841235906216
1963	10.19120077814774
1964	10.138522538973994
1965	10.025582819875329
1966	9.85161427323648
1967	9.641981592518665
1968	9.42198944788444
1969	9.214685720374602
1970	9.035940534847658
1971	8.891619029230064
1972	8.78072680163656
1973	8.69561742416371
1974	8.625171299978435
1975	8.562760355966747
1976	8.499559267661807
1977	8.434118751676651
1978	8.365906424915472
1979	8.295703103223246
1980	8.249109206624627
1981	8.232983460265034
1982	8.240978778255453
1983	8.281894684763737
1984	8.360472808942825
1985	8.472983139060815
1986	8.609429091471467
1987	8.764500121247085
1988	8.933836668471681
1989	9.110973832716168
1990	9.300026088067199
1991	9.51169214704026
1992	9.756811677189397
1993	10.03452756859964
1994	10.340810523130488
1995	10.670974925829979
1996	11.01537426181656
1997	11.366217621903454
1998	11.722380668980247
1999	12.091912911133093
2000	12.488357885574942
2001	12.92784125387037
2002	13.41616826506627
2003	13.939020136144014
2004	14.474891474660295
2005	14.99771739447881
2006	15.489427426552005
2007	15.962551923202723
2008	16.41384665289119
2009	16.829934444534032
2010	17.230484350507083
2011	17.647133494056167
2012	18.102311133805042
2013	18.607386509205543
2014	19.180199161972805
2015	19.81472078767299
2016	20.475403579412188
2017	21.129806992667056
2018	21.817344970180066
2019	22.608350146806128
2020	23.368744938596983
2021	24.056432240308713
2022	24.78515255628411
2023	25.592391769004102