Year % of GDP 1963 68.28775529292156 1964 67.82963210903195 1965 67.96000125330013 1966 66.43760702253591 1967 67.40947573842571 1968 67.28872210594739 1969 66.2901090864204 1970 63.97956875820785 1971 69.97628068976856 1972 66.7231826209867 1973 66.53045867123323 1974 61.21237780581655 1975 65.12237608166362 1976 60.25254186042005 1977 62.04507713690462 1978 64.85642571225793 1979 64.72145441934288 1980 62.916301267478005 1981 48.268349197454235 1982 49.6621670069064 1983 57.84556023062435 1984 60.75295273627424 1985 54.82422621047823 1986 70.06637875928133 1987 76.55113140964092 1988 78.80184758204024 1989 81.87628409358025 1990 84.41789809491932 1991 83.89999540409437 1992 83.56842707107741 1993 81.16784327148928 1994 76.72897975141495 1995 70.10575959150853 1996 62.51366564509411 1997 62.17266122389654 1998 60.425073197810086 1999 84.64611613094172 2000 82.10664783107335 2001 78.53745101121854 2002 72.90934994697427 2003 74.78743870176862 2004 73.97567917741912 2005 71.05366425876744 2006 67.55771144144464 2007 66.74035233033595 2008 63.61155480245687 2009 69.54396787819907 2010 67.1421537496325 2011 66.44383668678702 2012 66.73857584156269 2013 64.96378749828028 2014 63.741463911987026 2015 67.53489594480119 2016 70.99641185685866 2017 73.50602020911651 2018 73.30777007483078 2019 71.11502637976756 2020 71.83357443179331 2021 72.72171963991295 2022 72.85131900392877 2023 80.31815994986765