Year	% of working-age population
1960	6.950432952838048
1961	7.007397876847652
1962	7.280548571049708
1963	7.614140221848944
1964	8.074417683576321
1965	8.62374937876978
1966	9.257568525892461
1967	9.915516346042594
1968	10.539674755724272
1969	11.14135306756186
1970	11.7182044179598
1971	12.264756876765832
1972	12.769119866704463
1973	13.23926607107734
1974	13.687578142086787
1975	14.099507258500557
1976	14.450980825840483
1977	14.717878993881714
1978	14.849326871990334
1979	14.790213749455546
1980	14.54623293610485
1981	14.170095223651252
1982	13.726968588046192
1983	13.333343570723699
1984	13.103148131238507
1985	13.09522475819788
1986	13.291605496850181
1987	13.604058327609762
1988	13.984636447898193
1989	14.426971390496563
1990	14.923010993260515
1991	15.46302984424174
1992	15.989281397796898
1993	16.49181537297316
1994	17.05459313649806
1995	17.683435794784405
1996	18.344456135389855
1997	19.055333850905072
1998	19.821496916230565
1999	20.5908785212517
2000	21.320059682357403
2001	22.062555899926707
2002	22.770666807001952
2003	23.390455026384572
2004	23.96188569840321
2005	24.45147209196841
2006	24.876775882819267
2007	25.25345177559751
2008	25.55003022914089
2009	25.787529400273606
2010	26.03671862528463
2011	26.362158020183497
2012	26.78143652125503
2013	27.37731709306548
2014	28.170999838385143
2015	29.00501551248489
2016	29.62290187463022
2017	30.17354387074641
2018	30.79526086542254
2019	31.411216004759297
2020	31.853242625419448
2021	31.871585563447724
2022	31.624271547277782
2023	31.515238761252235