Year % of GDP 1960 33.11032222829055 1961 34.58982877587529 1962 35.373399497641365 1963 37.83575940675639 1964 39.091575091575095 1965 37.60317810637828 1966 35.3739827424038 1967 36.156698753353325 1968 37.199684915320994 1969 37.06301491872634 1970 32.880434782608695 1971 32.126670023995025 1972 34.897556364849464 1973 38.43382536902677 1974 45.0347824129314 1975 45.788263671654164 1976 45.65522178802613 1977 49.973812104897746 1978 53.345001944768576 1979 54.25783231861999 1980 66.42339585255922 1981 82.81514221003987 1982 79.22915924474529 1983 82.01954887218045 1984 82.05474683544304 1985 82.23994638069705 1986 84.13197278911565 1987 87.14252427184465 1988 88.55292207792208 1989 83.23831168831168 1990 86.1250521920668 1991 87.52346666666668 1992 84.53896477354421 1993 85.80779639175258 1994 84.63354285714286 1995 79.78740196078431 1996 78.64145597210114 1997 75.15475742760435 1998 77.02564370215728 1999 76.04336801040313 2000 76.74189944134078 2001 82.37828268748257 2002 87.83650039588282 2003 96.6788502994012 2004 96.67862586338347 2005 97.13784244846796 2006 97.38731171134856 2007 96.2064140574651 2008 88.4042515689559 2009 83.15590119938592 2010 80.74556172720537 2011 75.79391193051346 2012 69.71545905938258 2013 74.61183576158083 2014 75.44264837518638 2015 77.9858778916977 2016 98.13613236649702 2017 87.60246787218742 2018 77.76522118677298 2019 73.45453034494157 2020 79.97472492708482 2021 87.38649407347961 2022 94.39260975230934 2023 87.41746908220809