Year	% of working-age population
1960	6.266933377903492
1961	6.444447941748897
1962	6.670211420474051
1963	6.923768562652423
1964	7.176170778475767
1965	7.413713907881533
1966	7.631658352876469
1967	7.821291672835749
1968	7.989958330175146
1969	8.158771410218696
1970	8.340756654789352
1971	8.545102489914363
1972	8.774083615091504
1973	9.012462192147815
1974	9.239664703652402
1975	9.44056248796655
1976	9.60734833484888
1977	9.73810169809744
1978	9.82007433829921
1979	9.83567342540607
1980	9.791306492305212
1981	9.693450752570278
1982	9.55070662608649
1983	9.398748643180731
1984	9.283371633453413
1985	9.22312346142053
1986	9.240297299637781
1987	9.358427517587762
1988	9.570680826321933
1989	9.866527816863508
1990	10.253556291343683
1991	10.724534467229425
1992	11.693823749084453
1993	13.044716626675628
1994	14.256137488812607
1995	14.989124018599165
1996	14.984192501898965
1997	15.05544008699913
1998	15.400909469897996
1999	15.897578810472776
2000	16.435419875057754
2001	16.988578840799796
2002	17.551731932352922
2003	18.161867206708816
2004	18.881739470194823
2005	19.512611379433363
2006	19.952464546974706
2007	20.20611233372064
2008	20.28434117312864
2009	20.319903726180723
2010	20.327320059967494
2011	20.36016635167612
2012	20.523133435300174
2013	20.878435920487778
2014	21.36248311575876
2015	21.937078367810987
2016	22.61638730232159
2017	23.423655714321885
2018	24.378819735990863
2019	25.40357145050585
2020	26.350863279666093
2021	27.104705348787185
2022	27.573105838364008
2023	28.002973796921466