Year % of working-age population 1960 79.44762295821623 1961 79.02598578568598 1962 78.67724622426442 1963 78.53977016020497 1964 78.67392980103111 1965 78.95475382296753 1966 79.28734769821122 1967 79.63414308166892 1968 79.99295417153174 1969 80.41700199733329 1970 80.91621984700717 1971 81.57215128775935 1972 82.3010450323832 1973 82.93117491916068 1974 83.49454906831212 1975 84.02264723024788 1976 84.55160546664581 1977 85.0339370610641 1978 84.70154256236022 1979 83.92686379405964 1980 83.76925160625541 1981 83.97165402635935 1982 84.17623385029756 1983 84.36782806317038 1984 84.35204212807696 1985 84.37467849227771 1986 84.5899265403424 1987 84.76229591763781 1988 84.91936446544376 1989 85.07636366500306 1990 85.08302593426706 1991 85.15170154590038 1992 85.65954532312291 1993 85.94309133284449 1994 84.36181281342269 1995 83.80238129452403 1996 86.1149652394377 1997 88.61990989543678 1998 89.85258829899703 1999 90.2757711367784 2000 90.56914376318194 2001 90.61977601480427 2002 90.58573676517013 2003 90.71916626946947 2004 90.81566122911178 2005 90.76866403553228 2006 90.71600935047363 2007 90.7132288533986 2008 90.8376212068576 2009 91.0558684590209 2010 91.04910156119738 2011 90.83900212836917 2012 90.87077004110418 2013 91.01328655280595 2014 91.1359244966251 2015 91.27994406906204 2016 91.27709022005284 2017 91.30596468392267 2018 91.55276084468014 2019 91.8776380686259 2020 92.05742055107979 2021 92.10575770686387 2022 92.0766652356636 2023 91.89843353954686