Year % of GDP 1970 1.0130122087968265 1971 0.28124657426921135 1972 0.5822342015209455 1973 0.008154717391515024 1974 -1.455496861434548 1975 0.951305231067807 1976 0.12484319441564362 1977 0.41333404993859757 1978 0.46454916057124657 1979 -0.0015422212096360376 1980 -0.5306021963636848 1981 1.221824438828072 1982 1.9691754317126975 1983 0.9401047472281502 1984 1.0558267717606133 1985 0.3404737436570983 1986 0.37987539021949424 1987 -0.02382884178790814 1988 0.35129190484462064 1989 0.257727853935868 1990 0.36652306335180534 1991 0.5218963247236378 1992 0.7746105326648585 1993 0.8525287155983493 1994 0.8392460117181214 1995 0.2908628538721184 1996 0.679571525562494 1997 1.2852285960624585 1998 1.3941339759165723 1999 0.8654221845858932 2000 1.2329298806119597 2001 1.0981463484463585 2002 1.0193039093520426 2003 1.8574786491685655 2004 2.5588829597449214 2005 4.244095229741642 2006 5.346329072721777 2007 5.0604911525160645 2008 2.9842209889102502 2009 1.9938975352900727 2010 2.2413284844436387 2011 1.5389403884484063 2012 1.5515840119134336 2013 1.3432103773886184 2014 0.8687788605686144 2015 1.142473421852905 2016 2.003721245862649 2017 1.6512949171729197 2018 2.0034748547359005 2019 1.6552776186409317 2020 1.840809796110973 2021 2.308937652707839 2022 2.330475652061795