Year % GDP 1960 14.11116078080763 1961 16.32 1962 18.579626972740314 1963 19.330804659983745 1964 19.957840369562426 1965 20.240749628896587 1966 20.075228499460238 1967 22.13251233816532 1968 19.798611121477887 1969 19.70513159469859 1970 18.49361636416862 1971 19.483044412811388 1972 16.914380620162984 1973 12.963138011352857 1974 9.452827790624625 1975 9.255102318440304 1976 12.33304554674827 1977 13.276328769750679 1978 10.589107918741943 1979 12.795627502141524 1980 24.35696745105792 1981 23.803979887664966 1982 24.446229747283095 1983 21.247930690517432 1984 13.760367088257256 1985 17.021196052016318 1986 16.988845803245038 1987 18.261638794736253 1988 20.93537622159229 1989 14.526878689591927 1990 12.4016420953186 1991 11.780230700022829 1992 10.053799469999976 1993 7.454505419715152 1994 6.60883395155107 1995 7.264290805843911 1996 6.629311781369772 1997 5.504441339276086 1998 6.658058165829392 1999 8.518585160624722 2000 11.736321161289911 2001 12.538052491192966 2002 12.280895413560405 2003 10.309670402991987 2004 10.584997280998412 2005 10.442638277718933 2006 11.904166961005247 2007 10.232457680105112 2008 13.222506054553469 2009 13.259681702858256 2010 9.679742273536204 2011 15.137861437458264 2012 15.197871089731741 2013 18.06393511110438 2014 19.482957081353888 2015 20.284078950879763 2016 20.02386138916456 2017 19.399031532625322 2018 18.141659781227084 2019 21.164501175798673