Year % of working-age population 1960 5.953338463101962 1961 5.985222020874597 1962 6.0079716984335 1963 6.024293940944211 1964 6.039200293748971 1965 6.0619507430593 1966 6.096243679751239 1967 6.137258164132741 1968 6.1841308098206325 1969 6.234979435216158 1970 6.2849049174963065 1971 6.337996238659796 1972 6.3909324663585165 1973 6.447997513461134 1974 6.511139304209198 1975 6.574316240799742 1976 6.645288523441256 1977 6.728554669261463 1978 6.822247999528145 1979 6.908893835906203 1980 6.984404741274249 1981 7.062807533606871 1982 7.150504191647576 1983 7.249432298428352 1984 7.3558545538181335 1985 7.465680747057809 1986 7.585436245008884 1987 7.718015857576764 1988 7.8619110171080475 1989 8.011962731908934 1990 8.162319833452655 1991 8.308582912658151 1992 8.446304053054211 1993 8.57629016445945 1994 8.692378895402655 1995 8.792160013414916 1996 8.88565830395185 1997 8.978968467231677 1998 9.065726379450846 1999 9.152465898539162 2000 9.253556700068673 2001 9.36698703702129 2002 9.49871691903857 2003 9.647250506769051 2004 9.802588602778648 2005 9.966834920774263 2006 10.142434494979977 2007 10.329792612006928 2008 10.529701355995032 2009 10.751255791499842 2010 10.998952298484898 2011 11.285651777872781 2012 11.610120565233215 2013 11.960638051956844 2014 12.321438247707581 2015 12.67816035219656 2016 13.056365781728251 2017 13.466072222572803 2018 13.899733019301655 2019 14.353872822135472 2020 14.834714233329876 2021 15.278708350834364 2022 15.693198749291756 2023 16.234840921595232