Year % of working-age population 1960 87.3301826497146 1961 87.49563788719847 1962 87.77236021735565 1963 87.99968166139244 1964 88.0907960199005 1965 87.94701236027385 1966 87.61399960988349 1967 87.08579259041747 1968 86.25893810930718 1969 84.93816755232703 1970 82.76747297916698 1971 80.33910163131578 1972 78.35429621752571 1973 76.50791958679221 1974 74.53170639228115 1975 72.40980528147819 1976 70.25587135950198 1977 68.1985056872517 1978 66.44884737926209 1979 65.2034689000545 1980 64.48673504657427 1981 64.27236526214402 1982 64.46927056683154 1983 64.89370987723842 1984 65.37553147831233 1985 65.79800509091513 1986 66.00747898242166 1987 65.83938342282214 1988 65.34304517520904 1989 64.65219733480832 1990 63.78737541528239 1991 62.718503048523935 1992 61.42789690732007 1993 59.87244541803036 1994 58.03769414793496 1995 55.984332640372315 1996 53.764762627255955 1997 51.460983748207525 1998 49.2162203022296 1999 47.126784672932835 2000 45.16042565154193 2001 43.333940120786394 2002 41.75278958204978 2003 40.45033827252729 2004 39.436057029414116 2005 38.704275180690665 2006 38.203945618516606 2007 37.89669164322521 2008 37.77646983178605 2009 37.83228669908872 2010 38.046687183342335 2011 38.40337387585392 2012 38.87586798813167 2013 39.42466066282282 2014 40.005288819743896 2015 40.61038695910082 2016 41.22496919507352 2017 41.806184934232924 2018 41.935870310611975 2019 42.38867826606674 2020 43.26439441266342 2021 43.67808622966073 2022 44.012190361525114 2023 44.395798330395124