Year % of GDP 1960 85.60716676492154 1961 83.66120208707916 1962 62.95171440913022 1963 57.84752209529862 1964 56.44901092934913 1965 53.08640882995703 1966 51.107011070110694 1967 55.82194449005898 1968 57.23474276527332 1969 56.894082376825764 1970 57.76314473684211 1971 52.64936212535667 1972 51.78744927536232 1973 43.37747516556291 1974 59.47473385379703 1975 63.74695863746959 1976 66.55574043261231 1977 65.26595744680851 1978 61.0690872415532 1979 48.627450980392155 1980 60.12763596004439 1981 76.09377884437882 1982 68.50704225352112 1983 51.764264264264256 1984 45.623369848721964 1985 56.005356407086936 1986 53.66853395272578 1987 38.62088634939964 1988 40.42488619119878 1989 34.828807303024576 1990 19.04199475065617 1991 28.049954468583323 1992 16.448608964451314 1993 31.33982370740692 1994 74.21922716722995 1995 63.60793410338951 1996 59.94944987304762 1997 60.161540163753045 1998 72.62403269280932 1999 59.104119229973094 2000 43.612737186477645 2001 53.31245423033736 2002 53.93964558886408 2003 76.04941173836008 2004 50.83840588402965 2005 44.54780851098418 2006 48.136633517334694 2007 80.101234674803 2008 59.70556813079394 2009 71.07245357553046 2010 55.53666286951346 2011 50.980009970751915 2012 39.36240732548763 2013 40.06852280749532 2014 51.06398173236869 2015 76.46367276513094 2016 80.19129223393969 2017 46.654363599502744 2018 38.37262448465897 2019 35.37694155373559 2020 28.587579777002926 2021 32.70963229659543 2022 34.34918983590759 2023 39.31446660057596