Year % of GDP 1970 -0.013063524590163937 1971 0.012661921708185054 1972 0.011746573096346821 1973 0.01738752445120626 1974 0.03916536677043456 1975 0.0037641733391278174 1976 2.784491606794027E-05 1977 -0.02968849715901612 1978 0.05394413441278097 1979 1.3942692352575048 1980 1.0686844209992892 1981 1.115631636478854 1982 1.3329993952062011 1983 0.7310280821711033 1984 0.5396297974704045 1985 0.4376056025597931 1986 0.4640459445299074 1987 0.8904925727848558 1988 0.6552034104770306 1989 0.2825326572480954 1990 0.5397428387077624 1991 0.5371913997203407 1992 1.2637915703999616 1993 1.8810822763682036 1994 1.4201959473550534 1995 0.4297535480309897 1996 0.8625457355909838 1997 2.8495799482212933 1998 1.224592311837853 1999 1.1267659498218316 2000 1.0589882900176844 2001 1.0907472086787107 2002 1.1882779089503976 2003 1.2113274087665737 2004 1.126677351362442 2005 1.1161285430176837 2006 1.6962636199313978 2007 1.8639738781084016 2008 1.847529623051492 2009 0.9603904526985232 2010 0.8144445188601305 2011 1.4108836397955626 2012 1.335917347426317 2013 1.211096513530165 2014 1.0828121116612426 2015 0.7982711036547623 2016 1.0192320360305955 2017 1.4545218957374164 2018 1.708093857007098 2019 0.8352147529528342 2020 0.5148914999553306 2021 0.6684284278391626 2022 1.2115405314008263