Year % of GDP 1973 0.44670273582275777 1974 0.01055483016770373 1975 0.12009743174263615 1976 0.20294497572623332 1977 0.03267874812640177 1978 1.0110067756120789 1979 5.356565671276687 1980 -11.964988009237834 1981 0.10524688615764055 1982 0.6864790412156431 1983 1.509189664241599 1984 3.1681032059425887 1985 2.440284199009104 1986 -0.9195396568307836 1987 -0.9309041988812836 1988 5.2751357634796925 1989 4.116712854330927 1990 1.9077889426659758 1991 11.800826371994267 1992 16.078853137645915 1993 -4.6507687882132975 1994 3.2894793800102664 1995 6.473839057552035 1996 29.520072835376048 1997 4.561096662285762 1998 2.552219112927185 1999 6.026960182718284 2000 4.011545582349192 2001 0.8952439444461859 2002 2.261808943882173 2003 4.665543677609637 2004 6.5802100250026445 2005 6.566594458402294 2006 15.750865008588677 2007 8.082432189516705 2008 6.977577827404971 2009 1.1210529103272555 2010 0.6058000457977667 2011 2.713493530499075 2012 5.02346532615333 2013 11.455973269777138 2014 4.548430831191892 2015 0.2084878478927347 2016 0.7545738307198132 2017 4.025740110771658 2018 4.376104667418167 2019 2.4364152052234975 2020 2.949807255061696 2021 4.5286727942520475 2022 4.396540772717353