Year	% of working-age population
1960	80.5856531644163
1961	74.29747446516592
1962	73.42681597463086
1963	72.45547900688938
1964	71.6768356827267
1965	71.26377952755905
1966	70.69385945466638
1967	69.71760395423594
1968	68.41023160186249
1969	66.74962667994026
1970	66.75949034546171
1971	68.7433097837722
1972	70.62913611160793
1973	71.77513222111045
1974	72.23945765827875
1975	72.63525241636367
1976	73.11611161116112
1977	73.11614257322758
1978	72.11317640304291
1979	70.20828540586456
1980	67.92112581107273
1981	65.63764846393735
1982	63.68260926459042
1983	62.175964832891594
1984	60.83230747094278
1985	59.42533464130882
1986	58.10912511759172
1987	57.11038101614686
1988	56.59727608351689
1989	56.56290190123495
1990	56.771469501621056
1991	57.353691859592224
1992	58.253866075839454
1993	59.11914004180352
1994	59.76835241398818
1995	59.20528041109241
1996	57.79977226942279
1997	56.55214263010374
1998	55.31689586582905
1999	54.0884518792832
2000	53.28319882611886
2001	52.82779787967956
2002	52.328274816447426
2003	51.835215426164595
2004	51.423266462844296
2005	51.02981520422232
2006	50.703676920509544
2007	50.66894748553628
2008	50.94342250010444
2009	51.56099265990912
2010	52.38443472513254
2011	53.30492518085423
2012	54.353626000485086
2013	55.53076325108687
2014	56.79529103989536
2015	58.07223257656917
2016	59.31748807160003
2017	60.50178782483805
2018	61.625606090358445
2019	62.67709810739503
2020	63.68928450426588
2021	64.6039988805622
2022	65.55368837654892
2023	66.60896906561646