Year	% of working-age population
1960	8.429130125622185
1961	8.443027560674619
1962	8.45636423869676
1963	8.485429772349008
1964	8.526209482174233
1965	8.576089172840346
1966	8.638725878577088
1967	8.719981965974036
1968	8.802197945285746
1969	8.875331835817848
1970	8.94835563336251
1971	9.018761657462605
1972	9.107878320768805
1973	9.233601511039916
1974	9.367558481580053
1975	9.47617794156357
1976	9.54820260518109
1977	9.578905331351363
1978	9.566060819822104
1979	9.523705579324195
1980	9.46678011006882
1981	9.424789563629801
1982	9.427377938893924
1983	9.474516569621164
1984	9.566640242291196
1985	9.691367979679876
1986	9.837600555762512
1987	10.001115969523887
1988	10.170748285308234
1989	10.351435692294803
1990	10.544780074191838
1991	10.761171691255079
1992	11.007360446999408
1993	11.28822904710312
1994	11.614312327359157
1995	11.984507207562872
1996	12.391665520270054
1997	12.836521757441119
1998	13.327840258531209
1999	13.862548741581
2000	14.389915075533228
2001	14.80328670411315
2002	15.046222127285889
2003	15.184221181097806
2004	15.30648025608832
2005	15.457368253585106
2006	15.683954722772912
2007	16.00613894051074
2008	16.409505342629647
2009	16.88600765214537
2010	17.43862852505579
2011	18.026383004297003
2012	18.574980111376295
2013	19.118313020535943
2014	19.70367632037201
2015	20.315143824027075
2016	20.938088803456218
2017	21.552353069365093
2018	20.22566708079141
2019	19.756411324282052
2020	20.93885758731243
2021	21.43284446159784
2022	22.017988295824985
2023	22.69947844853426