Year % of GDP 1972 33.47960688138679 1973 44.98594025435904 1974 47.78150197647626 1975 49.746692309560494 1976 45.53901469472761 1977 39.58647592505793 1978 40.93914724706892 1980 32.13600192093766 1981 33.97409950691404 1982 36.45783785897844 1983 37.82241531546156 1984 36.767860489112714 1985 37.50809183784447 1986 33.601723035501784 1987 31.193743799218137 1988 32.891512294238254 1989 31.243250497793667 1990 80.61860276388937 1991 78.98242851463787 1992 70.45387212705462 1993 73.3517996451007 1994 70.81455567846753 1995 81.49152946928744 1996 77.60242961242713 1997 79.19012976730438 1998 73.38249632474329 1999 80.0958776511411 2000 79.1909460400421 2001 81.13440761287684 2002 82.78884619148388 2003 82.81095973698923 2004 86.47454046932933 2005 91.07090512182772 2006 91.30812467273832 2007 89.54182776882249 2008 37.67631655753462 2009 37.59478449699802 2010 37.4262542481941 2011 38.341578180018956 2012 38.085616413359205 2013 37.93138039808846 2014 38.17690597156768 2015 37.11721209549722 2016 37.042517191227475 2017 37.25684835922626 2018 37.34353644979917 2019 35.554174493642215 2020 35.1362173799021 2021 34.978311283901036 2022 33.26121907461741