Year	% of working-age population
1960	11.700807899114238
1961	11.518546635573587
1962	11.335415626292136
1963	11.181960805832484
1964	11.070517754615553
1965	11.01461816858408
1966	11.183383074078339
1967	11.53766806245516
1968	11.877567237847941
1969	12.201972682809643
1970	12.340990927244997
1971	12.34842629235716
1972	12.400326890548682
1973	12.48660273916193
1974	12.605494060624473
1975	12.73373205280664
1976	12.85472829402278
1977	12.955910858887279
1978	13.068466737703686
1979	13.186411201026196
1980	13.20761032013399
1981	13.105335295865178
1982	12.942044549694073
1983	12.801011181793974
1984	12.729960840986587
1985	12.705071192209266
1986	12.707134568444639
1987	12.725531356682563
1988	12.816627859326402
1989	13.05155248792182
1990	13.429546752954472
1991	13.917082925872762
1992	14.520374881638032
1993	15.229700392970377
1994	15.93694162668655
1995	16.547333837587843
1996	17.04291373186109
1997	17.459349600764746
1998	17.815873899477022
1999	18.09483085783051
2000	18.402303578151002
2001	18.83993362462957
2002	19.401533124582855
2003	20.075057222418017
2004	20.75014201933018
2005	21.314409862168773
2006	21.65586550751788
2007	21.56506612974687
2008	21.012097286870986
2009	20.265512552236302
2010	19.736766351155584
2011	19.60345332621135
2012	19.792234358000137
2013	20.22155867423111
2014	20.626102123284053
2015	20.925884915665755
2016	21.25684407193087
2017	21.581194574547705
2018	21.87560512044441
2019	22.17960804716159
2020	22.451283045123148
2021	22.621583263180344
2022	22.780571976783552
2023	23.059097959467202