Year	% of working-age population
1960	5.140215207639596
1961	5.0547550844006945
1962	4.976905171259846
1963	4.910918537145801
1964	4.855028617341017
1965	4.816284552766647
1966	4.792565338746511
1967	4.769959825370963
1968	4.74828758775351
1969	4.728960556685311
1970	4.713495014797198
1971	4.700785153461813
1972	4.690916900968448
1973	4.684234247114394
1974	4.682601386147825
1975	4.686845310754838
1976	4.6958692605585215
1977	4.710026819185349
1978	4.728475577607812
1979	4.7500516131453985
1980	4.773215428205831
1981	4.7965332912155505
1982	4.822752789521104
1983	4.853381076347701
1984	4.889441197917201
1985	4.932971629479866
1986	4.982526873843834
1987	5.039692716312672
1988	5.104837725748272
1989	5.174040975467556
1990	5.256057706567749
1991	5.340112992219172
1992	5.445749230809371
1993	5.503691553632225
1994	5.563570260089148
1995	5.514811424722152
1996	5.497376170030762
1997	5.646533801558647
1998	5.79026613660886
1999	5.8888238393059975
2000	5.976913582533097
2001	6.027869438197524
2002	6.0503739108252885
2003	6.035844748696912
2004	6.019607790412834
2005	6.087219528965468
2006	6.205861307283079
2007	6.33769785481868
2008	6.405048956203885
2009	6.476245999458044
2010	6.577107824846616
2011	6.675492006944757
2012	6.7924116505648975
2013	6.893578085425804
2014	7.024309417472001
2015	7.135006167377404
2016	7.180548877576253
2017	7.2200217627856365
2018	7.223695933851798
2019	7.216556454860795
2020	7.190872626938158
2021	7.129276959296865
2022	7.066828731330978
2023	7.03715804876959