Year	% of working-age population
1960	5.77390518571385
1961	5.766949383750995
1962	5.76770928182849
1963	5.771715540065714
1964	5.779502714917357
1965	5.7862973042412955
1966	5.790543813412455
1967	5.794301842736835
1968	5.7999031093191
1969	5.807668416913651
1970	5.814804912652429
1971	5.821196652185512
1972	5.828533630083532
1973	5.837095935847133
1974	5.84463368732872
1975	5.852236148508481
1976	5.866116299944941
1977	5.88202120499822
1978	5.897227429176094
1979	5.914280389692753
1980	5.916108315513589
1981	5.910414784734516
1982	5.912056482682224
1983	5.90836503927331
1984	5.90355703276244
1985	5.9041412323126075
1986	5.901886479131462
1987	5.903254711704377
1988	5.899321422925757
1989	5.8861547408247015
1990	5.875482361642103
1991	5.8666256428093195
1992	5.856093780353299
1993	5.839731574916817
1994	5.807907188324358
1995	5.769446078202846
1996	5.742606809837842
1997	5.717118135814625
1998	5.683215522879861
1999	5.648846913989975
2000	5.621415801037257
2001	5.5979250418065805
2002	5.576266161641814
2003	5.554824685849632
2004	5.534175169670192
2005	5.517598488597754
2006	5.504360172940967
2007	5.492714974325508
2008	5.482840717031789
2009	5.478528415302222
2010	5.482667746695093
2011	5.492963374402828
2012	5.505812469284666
2013	5.513614193670531
2014	5.513910432677016
2015	5.517190600169138
2016	5.532095642728655
2017	5.552387905176821
2018	5.573903618623576
2019	5.595761316933971
2020	5.594902483974686
2021	5.559082993652814
2022	5.517888227729167
2023	5.501355842662749