Year % of working-age population 1960 74.93187147474491 1961 75.3705746362249 1962 75.76167712952831 1963 75.9858990713688 1964 76.25979549243269 1965 76.67141542379505 1966 77.31760202536553 1967 78.35742597342038 1968 79.57857158894453 1969 80.39982710179382 1970 79.57349660146319 1971 77.7540469869658 1972 76.24715239970655 1973 74.78791737672991 1974 73.02666824054988 1975 70.76299856767515 1976 68.14494917785207 1977 65.43168469102272 1978 62.73682383934628 1979 60.17695745863505 1980 57.845895505899335 1981 56.095431646439195 1982 54.85480247275366 1983 53.79154016854315 1984 53.08574622099213 1985 52.64017809485374 1986 52.15932887358458 1987 51.61087566666044 1988 51.047002567316 1989 50.5550897598278 1990 50.00203359498923 1991 49.44741816282858 1992 49.209202212347655 1993 49.258569481623056 1994 49.21441725301513 1995 48.91637152678166 1996 48.472490520140234 1997 47.98633341849899 1998 47.482215846565005 1999 46.81155648099948 2000 45.92513459984023 2001 45.0052634751921 2002 44.24076969003659 2003 43.574357480561964 2004 42.89106834443622 2005 42.223685464516855 2006 41.602668131924304 2007 40.97376332560106 2008 40.38568400255202 2009 39.95675185363661 2010 39.161589546099464 2011 37.936286577955066 2012 36.79415378843849 2013 35.607150659545134 2014 34.451325792694234 2015 33.39410657849066 2016 32.2936361311884 2017 31.184716633340553 2018 30.117963895473608 2019 29.10802029259903 2020 28.183352873828 2021 27.32592279015144 2022 26.45897798752784 2023 25.59894505140526