Year % of GDP 1970 0.13855520989759987 1971 0.15168490153172867 1972 0.03752352537754065 1973 0.14841104227801327 1974 0.15041982124114736 1975 0.16817002029733052 1976 0.2632887997708393 1977 0.2073565236847152 1978 0.3021502086858432 1979 0.3598433508898821 1980 0.3058909752554635 1981 0.41920700019301815 1982 0.3571207679762707 1983 1.6600064594328006 1984 0.14129259351190193 1985 0.6988895800470217 1986 0.2835104806096511 1987 1.3870182056780487 1988 1.360250531237922 1989 0.3077291761417298 1990 5.194145386421638 1991 3.4359226357655293 1992 0.9388310716221357 1993 -2.9690815530179133 1994 3.6317094094616995 1995 2.790427386887236 1996 -1.7658980816520113 1997 -2.3695788886215716 1998 0.7139701394601502 1999 1.8273063911485574 2000 -7.8688277544528615 2001 -1.1272570325593723 2002 2.111272587677078 2003 0.7312881116019798 2004 0.8215965167911529 2005 -0.5586222771499773 2006 -0.3584914302748753 2007 2.9088524224216954 2008 0.6304067556373061 2009 -1.7076030018199504 2010 0.7052146545408172 2011 -0.07148028409778374 2012 -0.0514564139430108 2013 -0.7407554812266917 2014 0.7064694729937214 2015 -0.008828832684916984 2016 -0.4047834574258973 2017 -0.03875312728033007 2018 0.3040627922475189 2019 -0.732289829077237 2020 0.339435297055611 2021 -0.42153859117996223 2022 0.34561259213336326