Year % of GDP 1960 27.08029197080292 1961 25.200662630406057 1962 21.487101159804627 1963 21.193613478735486 1964 22.048236114946874 1965 22.181554671741395 1966 23.859940616242433 1967 23.60616540806826 1968 23.776077843766494 1969 25.15671751592799 1970 25.28402857439301 1971 19.36357392560371 1972 16.402025232053614 1973 14.98241665970538 1974 28.556987067709755 1975 40.37225892956637 1976 38.17722738130133 1977 33.861786472962024 1978 36.80581426215724 1979 39.90619824677385 1980 36.168009551940436 1981 31.927090516179348 1982 39.40235114980092 1983 33.965201538292824 1984 36.7277612821434 1985 38.80873171410722 1986 40.360667570513364 1987 43.23453722219546 1988 47.39931287202961 1989 51.1445210997592 1990 49.227733314282126 1991 45.21723534423742 1992 43.93943852042963 1993 41.25194030981806 1994 41.095745357976604 1995 43.4639160764762 1996 45.589375539944 1997 45.12638363993377 1998 44.15781836006398 1999 43.86024932479081 2000 48.145417431786015 2001 49.87932924206827 2002 50.1977925247207 2003 53.58166790912047 2004 57.848528634591986 2005 60.51148229661053 2006 63.10698114158806 2007 66.7489603794906 2008 70.76199280517964 2009 57.20700954168079 2010 60.039287712848946 2011 62.10971492043716 2012 59.119606252898315 2013 56.28183254852656 2014 56.9873796160703 2015 51.31895953510474 2016 48.16381541030968 2017 48.54279633646077 2018 50.51451059379818 2019 49.822653303054054 2020 52.44405116151805 2021 59.322691852171516 2022 67.21843180027179 2023 53.77796569489175