Year % of GDP 1960 28.4820605617109 1961 30.743520443600143 1962 28.82669339137002 1963 29.277924700677243 1964 35.78169572248756 1965 34.918319931485 1966 33.004716365458805 1967 40.342094127789466 1968 37.863093030649445 1969 37.22638450548129 1970 37.03452267254333 1971 41.487633264687 1972 24.531489271032505 1973 22.38412061219265 1974 29.93999531174905 1975 35.35599773249967 1976 32.07538807097655 1977 28.89077487649137 1978 28.34821940591298 1979 19.96639580227306 1980 26.052784175548847 1981 26.392220279158522 1982 25.730305654562503 1983 25.470508175447314 1984 20.001019416715106 1985 14.324275772078924 1986 8.461243489483794 1987 16.03313234358908 1988 16.38497515025819 1989 23.133478326951142 1990 31.749029512939302 1993 61.97796422190749 1994 46.22400415880378 1995 33.43938903354492 1996 32.11273867489651 1997 28.596593427807626 1998 24.88372150008415 1999 30.175202186097987 2000 38.90531579018183 2001 33.416155109683366 2002 37.98116362255945 2003 38.13090285901151 2004 38.76640116596071 2005 42.52245120081412 2006 44.22999675970979 2007 38.20578145328696 2008 41.487749907102376 2009 31.123661311660168 2010 34.24761532484993 2011 30.945496448903615 2012 25.717991767094716 2013 27.86988831368063 2014 32.63936071910892 2015 28.223506644463775 2016 25.326308831474293 2017 29.234317037159997 2018 46.33871325883404 2019 37.915098754109835 2020 35.73646987481261 2021 33.62100797497375 2022 37.834314298487215 2023 38.969424816957265