Year % of GDP 1960 16.612310235676745 1961 16.108676936492056 1962 14.481507397551184 1963 15.848147152764946 1964 15.428114904853244 1965 14.819284884810164 1966 15.7941744238628 1967 15.076641267321724 1968 15.168767935103714 1969 14.751562157426578 1970 15.58577794892579 1971 15.796517675243527 1972 16.37535511918027 1973 18.74798017496643 1974 23.0748397944658 1975 22.3199477709348 1976 21.93834956974381 1977 21.97182339583662 1978 24.207917381945755 1979 26.18764317323198 1980 29.71005318758266 1981 30.555691522236497 1982 27.816999614106923 1983 27.12742986613816 1984 27.627117601057154 1985 27.786516761917994 1986 26.09036558331832 1987 29.23339010104833 1988 33.17793481093008 1989 32.81300471257133 1990 32.86855125327027 1991 33.15087947165305 1992 41.95093633355186 1993 41.02066531015273 1994 40.7556320323417 1995 41.77556805414659 1996 41.30040869571171 1997 43.14034456545966 1998 44.00304430203721 1999 44.736800728610916 2000 49.03751936024844 2001 48.0603071991535 2002 50.37546518721038 2003 54.66804297654717 2004 59.48596562556794 2005 61.036632080403116 2006 61.89980526641075 2007 60.82851821316982 2008 60.67990590242291 2009 51.060586785663766 2010 54.228363782543916 2011 55.91669312587946 2012 54.696280637319596 2013 53.35673475019898 2014 51.999404770433365 2015 48.66585385345425 2016 46.79284531607335 2017 48.2237973318069 2018 50.45322864406759 2019 48.46064736027265 2020 45.88352114932556 2021 51.1506778884995 2022 54.21697076856677 2023 49.230402686076204