Year % of GDP 1960 31.237541670682447 1961 29.595243518664972 1962 28.175999957927683 1963 27.790913279152186 1964 32.728649811811486 1965 32.62603557051873 1966 33.90697886971027 1967 36.955438385917475 1968 37.991939793274064 1969 39.07814316902472 1970 39.66701454830665 1971 44.428029510676595 1972 44.453449868357644 1973 54.097886920795666 1974 71.404688105953 1975 76.11562342669063 1976 65.43508112543414 1977 59.88807836490354 1978 45.69456563719663 1979 42.80582677606689 1980 42.482673867628606 1981 40.3131061355616 1982 38.06351687819442 1983 38.73011351687523 1984 27.93413761017479 1985 23.17239114054755 1986 14.144853904130134 1987 17.884853137682587 1988 21.583978839735437 1989 27.935025707906213 1990 37.08056769881109 1991 44.19417164834034 1992 40.39792725209893 1993 46.04086432493307 1994 41.60913639826965 1995 35.14424491527392 1996 35.22129915551214 1997 32.6495581114856 1998 29.22821964621684 1999 34.885414134490595 2000 41.257247464894796 2001 40.53556648018004 2002 48.17268655181155 2003 50.67910577490935 2004 51.31385732704762 2005 54.44049526261689 2006 53.16735871392614 2007 49.887306921914075 2008 48.22940277376548 2009 43.6995802244165 2010 43.77064373735238 2011 41.21941479185781 2012 44.08934668074519 2013 47.08671791947549 2014 45.35142014131612 2015 39.42258866117996 2016 40.38784692084264 2017 44.74487076590872 2018 58.56508971521562 2019 50.75433435010774 2020 43.810164687097746 2021 44.37383405086651 2022 51.597506811023976 2023 55.54403290844239