Year % of GDP 1960 74.28890221489432 1961 71.87977236852055 1962 68.83288660538642 1963 70.84805308362316 1964 73.06742098960544 1965 70.60770531365706 1966 70.05149260870935 1967 68.99210441726862 1968 73.3871954295701 1969 78.3797968282779 1970 85.41472065399378 1971 101.14587139139157 1972 92.9011735398022 1973 100.08048993544175 1974 144.47912361540656 1975 160.1346980479343 1976 164.504843750868 1977 158.3672931998403 1978 140.85255301600785 1979 142.05664380893018 1980 154.70098190670242 1981 159.20328568076576 1982 139.97938792706964 1983 125.87100942199785 1984 118.32455325654685 1985 105.68832287796069 1986 96.16924068731399 1987 90.44047481724107 1988 84.04085642434573 1989 93.3636139571355 1990 83.22006187215752 1991 81.96092228455603 1992 79.94676001940478 1993 74.12790719050143 1994 75.83016661932142 1995 76.97859176102614 1996 80.88473277686373 1997 77.83981101806903 1998 73.04340920158835 1999 71.76968108563007 2000 78.13092014398191 2001 74.75969198210629 2002 72.96747846600746 2003 72.75657836504111 2004 72.09998645117132 2005 76.18276849875714 2006 79.51842935131629 2007 76.55519486852171 2008 81.20428040380676 2009 67.38627329606389 2010 74.50486850575325 2011 82.5357415671701 2012 81.55677823906252 2013 78.19789091860486 2014 77.28951834207034 2015 70.97961081840452 2016 67.62216226657813 2017 69.41012306423511 2018 73.01445097004616 2019 70.61221353994935 2020 68.85399122040246 2021 79.80243648773589 2022 85.62239103747604 2023 76.45248795813025