Year % of GDP 1960 37.10680774777226 1961 19.427130211799078 1962 15.146287678540698 1963 18.837090611231275 1964 26.7943872032111 1965 33.339552439446365 1966 33.847147725949064 1967 28.816389789321146 1968 27.145140238518433 1969 30.789574334930176 1970 36.101426937754965 1971 36.790155431641494 1972 35.717763732173644 1973 36.54702743269719 1974 36.07144737419104 1975 38.00815516038823 1976 34.17619354212675 1977 36.759166612307695 1978 39.28244131186584 1979 37.10491235335495 1980 35.31062929522836 1981 33.583645579998176 1982 33.433649528319116 1983 32.548522584301644 1984 34.235846665487244 1985 34.92915104618908 1986 35.13181837516039 1987 37.21743655902111 1988 37.884525961358726 1989 35.716847728103716 1990 36.35087703260334 1991 38.08120845080206 1992 40.28471713038448 1993 41.651098529314744 1994 41.82094586644251 1995 40.93772200384229 1996 39.95253033303559 1997 40.35160526094686 1998 39.54866526870508 1999 37.42869240932658 2000 36.42921172240706 2001 38.06675098670033 2002 39.016556752923194 2003 41.978005686221984 2004 44.763752093419065 2005 45.61545910194326 2006 47.427504524806935 2007 49.00371225514372 2008 50.2265054586843 2009 49.919727964062346 2010 51.08663833296272 2011 49.84070671805226 2012 48.85738669943752 2013 48.28285299119739 2014 47.47505698924214 2015 46.00910957158032 2016 44.96126248812527 2017 45.13239156672334 2018 44.942311138085884 2019 43.98142695773423 2020 44.66955422487337 2021 46.0782963460702 2022 46.55806641189185