Year % of GDP 1960 33.97317986014065 1961 19.57186172687152 1962 11.56008237180806 1963 15.154795845140201 1964 21.887467915055165 1965 27.823697524237197 1966 28.491176359275933 1967 24.046838994422842 1968 23.19745298910983 1969 26.533141133983396 1970 29.155665564441136 1971 30.355424769190204 1972 29.325373605425202 1973 30.434720441816136 1974 31.048684673162423 1975 31.30372301497623 1976 29.169693123328898 1977 30.978025885199617 1978 32.78274463616978 1979 33.52474574644145 1980 32.054919705618445 1981 29.345733796395667 1982 28.330048837184712 1983 30.4268464933428 1984 31.282212575811723 1985 31.469733849383253 1986 32.89048075750297 1987 36.50567173944013 1988 35.51321497131655 1989 32.574726528798365 1990 32.03970598165484 1991 33.25786713775309 1992 34.64419572987134 1993 36.66707943742589 1994 37.08161858750397 1995 36.70533325396964 1996 36.25601552022716 1997 36.759070079781175 1998 36.91447173540187 1999 34.40355018219379 2000 34.95229930713911 2001 35.672167478902765 2002 35.917225245063506 2003 38.0321171802698 2004 40.391743772593166 2005 41.425817746469576 2006 43.01757490065466 2007 44.41975832902392 2008 45.8675961399209 2009 45.7989999760478 2010 47.033142461689145 2011 46.31149746054466 2012 45.415448752530864 2013 45.00375681107686 2014 44.53522287366775 2015 43.302039323968586 2016 42.40133137747022 2017 42.725873768766036 2018 42.640670587952314 2019 41.6413128483718 2020 41.98366793151893 2021 43.63345769988337 2022 44.207884810163094