Year	% of working-age population
1960	13.093080513333286
1961	13.148538252501174
1962	13.163742409749377
1963	13.143823743890454
1964	13.112796799336277
1965	13.088879211233776
1966	13.045509243808082
1967	12.987419737013761
1968	12.952042914375822
1969	12.947192329266985
1970	12.903423828298925
1971	12.838570762672017
1972	12.83844654411027
1973	12.872936525065295
1974	12.901783460766946
1975	12.962947291030577
1976	13.08366852116139
1977	13.24401735260657
1978	13.435135961356584
1979	13.642064342153503
1980	13.84692304362048
1981	14.036343967064377
1982	14.211252041539085
1983	14.397234176897003
1984	14.636070188925412
1985	14.94573828290241
1986	15.285789714117398
1987	15.627733457103101
1988	15.937785539325326
1989	16.210115550876232
1990	16.491893914043608
1991	16.771296397685937
1992	17.02883310286859
1993	17.251534714515433
1994	17.43798994489258
1995	17.613557951231048
1996	17.784778866700034
1997	17.953432230454336
1998	18.103496071280553
1999	18.20085905329154
2000	18.275168948073524
2001	18.350877016407335
2002	18.418633782335313
2003	18.506632822207976
2004	18.6137336660682
2005	18.747106750514263
2006	18.94420353643567
2007	19.20823867300325
2008	19.522764849962098
2009	19.868679745101836
2010	20.270785999274022
2011	20.806132294739804
2012	21.482188393339122
2013	22.205413851420573
2014	22.91781933521057
2015	23.628024312267218
2016	24.332972355189835
2017	25.023596524590157
2018	25.703141175677647
2019	26.424827315083505
2020	27.25389601778764
2021	28.171246793873834
2022	29.109528071199957
2023	30.047718445643472