Year % of GDP 1964 95.01666203832269 1965 46.68311632182071 1966 48.091978970929965 1967 45.57626259661761 1968 49.919481611211246 1969 47.656079626599286 1970 49.75750266836492 1971 48.34806624432928 1972 47.41733051890905 1973 47.49005364673028 1974 46.92771116710638 1975 47.135567681262465 1976 47.47446491409262 1977 48.977022428902366 1978 54.05078430338447 1979 51.50466848663265 1980 53.124255394050145 1981 51.81095781599906 1982 54.35852921636938 1983 52.743783638137074 1984 47.505672077437886 1985 45.04553480447493 1986 46.24589046600659 1987 48.4063859644532 1988 45.60980897732031 1989 44.85122574335658 1990 45.38475854123868 1991 41.98427452551337 1992 47.103981262042375 1993 47.14813414939758 1994 43.78817169580629 1995 49.22105552809289 1996 46.50037098627539 1997 48.948805353835134 1998 47.00198448345932 1999 46.13197662162529 2000 70.12534130261155 2001 74.66612157931658 2002 77.02006856890864 2003 74.35868072860919 2004 49.833161039868 2005 48.6813785868511 2006 44.93365735369877 2007 44.48720708836616 2008 48.54836924260391 2009 54.91697820602061 2010 57.83214254465615 2011 57.89580728235998 2012 55.08523799557248 2013 58.32607529613399 2014 57.59105440821387 2015 58.65106029565338 2016 60.40990150115788 2017 60.591645107015424 2018 55.98476772735563 2019 52.67729889508877 2020 52.892573555016945 2021 56.63987004993749 2022 40.73846502978446 2023 18.451652840240264