Year % of GDP 1977 0.004487703955260175 1978 0 1979 0 1980 0.23339071642880208 1981 0.11605113388717905 1982 0.1445291752454192 1983 0.07150579031487778 1984 0.04198131001571538 1985 0.16589683694304003 1986 0.032365118747596046 1987 0.14024321843552695 1988 0.03707812426901589 1989 0.01855143253093267 1990 0.04355720904991312 1991 0.05213951109912481 1992 0.16715674972864206 1993 0.6028706072718485 1994 0.41279761782116203 1995 0.4713842096670228 1996 0.1922912662183473 1997 0.1445173964074638 1998 0.2147869647446892 1999 0.8348885707190531 2000 -0.7505696059467601 2001 0.53851159693733 2002 0.34635178812235035 2003 0.3492683455352827 2004 0.5084103509397776 2005 0.7392640703901846 2006 0.8368885804940116 2007 3.4444492180992436 2008 1.0846736376096942 2009 1.0780693105997705 2010 1.3016177658973478 2011 1.0031909918844992 2012 1.5933154067483701 2013 1.2845765977747188 2014 2.270351578060245 2015 1.8076619464281365 2016 0.7522069992940345 2017 1.0060655402502237 2018 1.1866208438744905 2019 0.8892591822604176 2020 0.9846634403488017 2021 0.5712237484192799 2022 0.9549281744520861