Year % of GDP 1982 2.233539650453629 1983 1.9305788186768573 1984 3.4122989612383545 1985 5.158556695605117 1986 5.745287879946833 1987 6.449267856580988 1988 4.970030198764159 1989 5.674892436744075 1990 4.772111240200635 1991 4.622168895948298 1992 5.275640104148161 1993 6.894185722947832 1994 11.754799564083243 1995 14.35719664274179 1996 14.964788104558819 1997 16.330638580764166 1998 14.145490893655468 1999 16.972280963947966 2000 20.941549183180342 2001 36.579239749797814 2002 59.72306925550542 2003 48.600982728379606 2004 22.740357679412096 2005 20.591839272221733 2006 22.005529615990334 2007 21.38259614685696 2008 21.30595369519921 2009 29.416720133873447 2010 33.62210713211904 2011 28.280367591712835 2012 31.100264325905464 2013 28.582692255991404 2014 33.17319487761493 2015 27.814967562557925 2016 23.643599540441176 2017 20.537623455549028 2018 20.867514283755444 2019 21.41343297470567 2020 20.555078513114918 2021 18.97331761058521 2022 14.974022029165285 2023 25.755471393211042