Year % of GDP 1960 7.042268199868426 1961 7.376593192696449 1965 12.824438555190756 1966 12.95881449992372 1967 13.87509752895788 1968 14.132634351918869 1969 14.021592847207584 1970 12.886531573722365 1971 19.023625476333056 1972 14.843777954908226 1973 14.5997706020532 1974 13.071642116440174 1975 14.479742851264673 1976 17.03760513515957 1977 17.319091920008788 1978 21.620072440675763 1979 19.799728867906133 1980 19.928878679670873 1981 20.156040950709635 1982 17.976349018444058 1983 17.07925108748831 1984 18.461426979133925 1985 19.330818815563877 1986 16.455209999193148 1987 16.793026987442126 1988 15.186647060398665 1989 16.538941947638847 1990 15.390018214266888 1991 13.952014371555647 1992 14.373863278120632 1993 15.572367587779517 1994 15.704244474714876 1995 15.51619931829175 1996 15.060364487479733 1997 15.309688076108166 1998 16.116885820080316 1999 18.66585486862399 2000 20.397649567359494 2001 18.137817721437948 2002 17.993673376042224 2003 18.504733863281718 2004 20.862930026081646 2005 21.542452513162 2006 21.63660498853711 2007 21.416542033875764 2008 20.57809858001865 2009 19.02273539252212 2010 18.507485575823836 2011 18.781083143218027 2012 20.60611444782324 2013 19.739445653317578 2014 19.25024276054667 2015 20.276369537500763 2016 20.692959511450486 2017 21.170681936694688 2018 22.337216015953985 2019 22.38347828016239 2020 19.58846675582753 2021 22.163114965474456 2022 24.976721648872353 2023 24.92779508814367