Year % of working-age population 1960 70.89969182277433 1961 71.15823076460728 1962 71.55035369752378 1963 72.1242683343624 1964 72.68785400641312 1965 73.06617337083388 1966 73.32648907085215 1967 73.50424087762573 1968 73.60030284443762 1969 73.62348897982638 1970 73.57229537522304 1971 73.44985524698897 1972 73.29570637737118 1973 73.10518945550069 1974 72.92003795430864 1975 72.82303348556978 1976 72.81363583636224 1977 72.88362303119153 1978 73.01693647756396 1979 73.19492624917913 1980 73.43990827261835 1981 73.77335841608352 1982 74.19117674350126 1983 74.64825706995238 1984 75.11310528903226 1985 75.60824493180537 1986 76.13777267905434 1987 76.6891848882826 1988 77.24183017794832 1989 77.72776184377953 1990 78.08081524407949 1991 78.21889070734028 1992 78.11710412994081 1993 77.82948065155182 1994 77.3696067648614 1995 76.76485993870483 1996 76.03276213365089 1997 75.17336611186293 1998 74.22835606594785 1999 73.22635719926274 2000 72.17127547046498 2001 71.03235136298814 2002 69.7871286594358 2003 68.48044554421017 2004 67.12083648316136 2005 65.73786447254048 2006 64.44095413949776 2007 63.238715497094844 2008 62.09794075091657 2009 61.03561458147316 2010 60.025733713976436 2011 59.06508566671865 2012 58.13910119762832 2013 57.20480425665494 2014 56.29749375225816 2015 55.418706626478944 2016 54.59587072705716 2017 53.865462307682975 2018 53.183885805294786 2019 52.52201501692595 2020 51.87659458675395 2021 51.238391120677015 2022 50.6086404182017 2023 49.98673746811427