Year % of GDP 1970 0 1971 1.18826983142512E-05 1972 4.43133705096737E-05 1973 4.5894152307382E-05 1974 0.000141344338174577 1975 0.000254344099309778 1976 0.000666239881244398 1977 0.00071834606140658 1978 0.000842952383778082 1979 0.00143303389997144 1980 0.00203664977586871 1981 0.00107371949419083 1982 0.00082279795465204 1983 0.00249881406713819 1984 0.015744025611992823 1985 0.013611295203519082 1986 0.02164809628259396 1987 0.7702108843999502 1988 0.5205533701868603 1989 0.518145234500389 1990 0.8289865253626143 1991 0.5217352278846147 1992 0.23897611126713297 1993 0.5528206799454839 1994 0.5333587010118241 1995 0.8112069257891431 1996 0.7616946169867672 1997 0.714719034710358 1998 0.07074570352988925 1999 0.08265801630577284 2000 0.6580246650079247 2001 1.6988810680030035 2002 1.1025379375975346 2003 0.9938852261158971 2004 0.6760015813332356 2005 0.48632861022067586 2006 0.9413318911322416 2007 0.8389917173850989 2008 1.3511348879447471 2009 0.968192189122061 2010 0.7769656572217886 2011 1.1456101806127537 2012 1.176748025607356 2013 1.086613309534207 2014 0.8346925758362763 2015 0.7101433389683988 2016 0.4392614183024952 2017 0.5891213216437329 2018 1.0193982598543923 2019 0.7196017949521639 2020 0.2332471145126165 2021 1.2006184523009356