Year % of GDP 1960 26.249792654563343 1961 26.710012565391537 1962 30.66915966042493 1963 30.437841431297986 1964 30.149296999565156 1965 31.67210038695095 1966 32.944565923045374 1967 31.90328008256955 1968 32.17135722958244 1969 32.915591894805694 1970 34.49280477131715 1971 33.663246270860384 1972 33.64384269573351 1973 33.44143625952519 1974 47.20542943779933 1975 48.37178239875669 1976 41.96118706111728 1977 40.6097020887593 1978 36.923358388410676 1979 40.13981071285389 1980 39.22770063430108 1981 35.768847841944584 1982 33.71019482430134 1983 29.238206793767446 1984 27.47685002609654 1985 26.415890589050058 1986 23.213275781277513 1987 24.371434844645943 1988 17.9237476340399 1989 22.032722039064893 1990 29.204377330502318 1991 29.018998821924765 1992 31.408778072077226 1993 31.209488722990386 1994 31.894368073906264 1995 32.756016549601334 1996 34.47649124755053 1997 34.887142342284896 1998 36.12807147352356 1999 35.76182859578138 2000 34.443761294493754 2001 30.99500757214034 2002 29.459046937958323 2003 28.844789125312953 2004 30.226367987433505 2005 101.6831529868107 2006 103.67845868711629 2007 103.72847665805463 2008 101.58257736918105 2009 90.69709223071906 2010 94.17027570070341 2011 104.81682781483946 2012 105.04406414096567 2013 82.71947964798169 2014 74.83964792654052 2015 62.582498641198846 2016 55.48484916513693 2017 53.09576593942064 2018 51.24663906245238 2019 47.05846074299228 2020 42.43184824276015 2021 50.07956318835728 2022 58.188105648768804 2023 60.933722224354305