Year % of GDP 1973 2.066430475225876 1974 2.1589120662602608 1975 2.1589734350659935 1976 2.663144599245252 1977 2.8513733731972852 1978 3.513320591163206 1979 3.3846895528825325 1980 2.660244146749623 1981 2.675320503443319 1982 2.740158099267375 1983 3.271169546904024 1984 3.2198089122137223 1985 3.0333328655898306 1986 3.2460454155940215 1987 2.6790803356659403 1988 2.899777664481293 1989 2.9469031575274562 1990 3.5675299559089297 1991 3.46279915112436 1992 2.912483306489254 1993 3.7085378412249472 1994 3.450087383149483 1995 2.335654803961429 1996 1.990879576748739 1997 2.0920508749952424 1998 2.2671502690251857 1999 2.9354602571162944 2000 2.3316266037619053 2001 2.1723532457605943 2002 2.05267898827875 2003 1.94152750710464 2004 2.1540873175062742 2005 1.9510633354492326 2006 2.121931032995301 2007 2.191493349235333 2008 2.36562143984329 2009 2.467103279390502 2010 2.0836292404161227 2011 1.9874419107549903 2012 2.0079041311518457 2013 2.1768087699623364 2014 2.15635204865476 2015 1.8237325852600401 2016 1.563352069590208 2017 1.526705404702692 2018 1.3396810073014198 2019 1.3427469952294155 2020 1.4364111267496102 2021 1.37544382277905 2022 1.3568352939288588