Year % of working-age population 1960 83.90868384790086 1961 84.35881869535551 1962 84.84816531152745 1963 85.45563853188398 1964 86.14219810895078 1965 86.7462706006167 1966 87.26458940660238 1967 87.7684825306282 1968 88.24938284903034 1969 88.73701371709015 1970 89.24797717545653 1971 89.82311242354922 1972 90.4231144876311 1973 90.9094517622303 1974 91.2516287556029 1975 91.47017340921936 1976 91.66856015057559 1977 91.87906075772655 1978 92.05466753009108 1979 92.24249647705648 1980 92.52122903736597 1981 92.80388656825222 1982 92.93493625593878 1983 92.92999549522652 1984 92.88326143822246 1985 92.83252004262711 1986 92.72384052501286 1987 92.57804120387331 1988 92.42861907397098 1989 92.2914684169611 1990 92.14194425381851 1991 91.90022943470392 1992 91.5766525547708 1993 91.31305610684852 1994 90.86345137748411 1995 90.32012899761563 1996 90.00222569328476 1997 89.70170432761824 1998 89.17045227710018 1999 88.54319386426639 2000 87.97530087412046 2001 87.42492148263658 2002 86.93190523757843 2003 86.4523739558741 2004 85.93856687135319 2005 85.40141018817845 2006 84.91804298624473 2007 84.56379668720484 2008 84.1820066160454 2009 83.6903020784458 2010 83.16618099380823 2011 82.56601104922298 2012 81.95706852367606 2013 81.36212781211732 2014 80.73409630584113 2015 80.13931949200727 2016 79.52732515723628 2017 78.87994282516448 2018 78.25008125254143 2019 77.61935094347123 2020 76.93532142944937 2021 76.23340419314368 2022 75.57585680958177 2023 74.94376713895932