Year % of working-age population 1960 74.6753997159398 1961 73.45193394334876 1962 72.28590982975447 1963 71.43186260821 1964 70.6601976934623 1965 70.56158476538737 1966 71.2996240139908 1967 72.02414286603198 1968 72.69861265888206 1969 73.27328761453577 1970 73.71949441390707 1971 74.02488397353609 1972 74.17564578332994 1973 74.19528985074983 1974 74.11820389348479 1975 74.27639660464698 1976 74.63077328505791 1977 74.71626253649866 1978 74.31943788707751 1979 73.44607596597494 1980 72.54875093364285 1981 72.04098775508041 1982 71.78759669594861 1983 71.62577760044357 1984 71.6684522881098 1985 72.02602675813021 1986 72.76217920483361 1987 73.99733507716968 1988 75.8021513955853 1989 77.79014209079197 1990 79.371813223864 1991 80.36757256441742 1992 81.17498289286308 1993 82.1165191740413 1994 83.0964987500397 1995 83.96839939996586 1996 84.64150935014338 1997 85.13383282367172 1998 85.46296958777528 1999 85.63836623483446 2000 85.81528476473748 2001 86.15356714028417 2002 86.61213788519414 2003 87.1140993801361 2004 87.47490561737631 2005 87.47821680492508 2006 87.2518766344653 2007 86.948500081612 2008 86.51736827611857 2009 86.04285721768554 2010 85.77699646703418 2011 85.51516990088976 2012 84.84399955156879 2013 83.64086227204098 2014 82.00880526718424 2015 80.28302521510963 2016 78.51512673276275 2017 76.62021613773489 2018 74.62034092513098 2019 72.53451191494808 2020 70.40743294436564 2021 68.29194647546028 2022 66.44053452723823 2023 64.93052314622322