Year % of GDP 1976 4.074404335478752 1977 3.5083438049742677 1978 3.3267008422504554 1980 2.6324497632698614 1981 1.3994026606969463 1982 0.526136628835807 1983 1.438798651553669 1984 1.5309768411162925 1985 1.8517298524051378 1986 2.47016752507354 1987 1.6791684839196872 1988 1.4499689482806428 1989 1.5059965183788047 1990 1.635899970320471 1991 1.338824152757316 1992 1.399874649407286 1993 1.7240950412757539 1994 1.818961788502273 1995 1.604038592329995 1996 1.772132580695974 1997 1.8955208330205582 1998 1.4464394082016485 1999 1.4800676343914185 2000 1.9435136354702822 2001 1.9527128841720283 2002 1.5731265865905604 2003 1.5398764324656742 2004 1.4518417843172828 2005 1.4133836513088995 2006 1.3052705139817948 2007 1.0895925597890155 2008 1.1035545658573613 2009 1.2344470172673832 2010 1.2317024768527283 2011 1.3159109759725112 2012 1.311926973035484 2013 1.30465573500803 2014 1.4808686179058204 2015 2.1249135470119698 2016 1.3964147529152573 2017 1.3395863985875802 2018 1.857925853462539 2019 1.8566982856775518 2020 1.8669326045299923 2021 2.544380650051159