Year % of GDP 1970 0.5130829742298282 1971 0.15789767913809527 1972 -0.18899522785887246 1973 0.36352971093710185 1974 -0.04823195800162239 1975 0.686435782813362 1976 -0.15966940343988867 1977 -1.0316520753991618 1978 -0.9600381003300882 1979 -0.7406559482553003 1980 -0.25781365412701795 1981 -0.2881385310451048 1982 -0.2129308230289002 1983 -1.0209135112683754 1984 -2.0544277866469116 1985 -2.2409916809705503 1986 -2.5829277568064963 1987 -2.6367992578774953 1988 -1.8297530518564642 1989 -1.385734403626639 1990 -1.163673338967996 1991 -0.4596041548180736 1992 -0.5068153520931507 1993 -0.863887425294946 1994 -1.079142059539146 1995 -0.8472417572137871 1996 -0.810870909240041 1997 -0.9560812110660262 1998 -1.5378495049861254 1999 -2.2695377548699387 2000 -3.071777117338632 2001 -2.94349622688172 2002 -3.465512149772488 2003 -3.934369255671216 2004 -4.432505389655452 2005 -4.8696778266907295 2006 -4.94552311509071 2007 -4.403891752984267 2008 -4.358243877244494 2009 -2.7582827850061538 2010 -3.3636259853996613 2011 -3.438494460127913 2012 -3.230889318817203 2013 -2.6991392859833816 2014 -2.6961273811569235 2015 -2.824601175014589 2016 -2.6427122164501817 2017 -2.716325080062683 2018 -2.7909572302071073 2019 -2.5873578329326765 2020 -2.876793141581649 2021 -3.343515659603753 2022 -3.4617529717272735