Year % of GDP 1980 6.32709073146053 1981 4.36349838453125 1982 2.93242885677091 1983 2.40461859920779 1984 3.61016654602263 1985 4.62438650697376 1986 1.39554551088141 1987 2.3265207202648 1988 40.0701634879501 1989 31.9534978771394 1990 10.6504237394718 1991 1.30290832295929 1992 0.661164148708913 1993 0.483065179682821 1994 0.569599897807329 1995 0.812418839940878 1996 0.635076590121081 1997 0.905100157891139 1998 0.755601344112676 1999 0.53266664690255 2000 0.592005978212752 2001 0.634861422008575 2002 0.598634291159831 2003 0.930610729240151 2004 0.794488876889435 2005 1.18277131353143 2006 2.66281251772741 2007 5.84952043001738 2008 2.25103912617622 2009 1.93055021806173 2010 2.39089689019764 2011 2.071941381811 2012 1.73059224032469 2013 1.17402632983259 2014 1.64153563776896 2015 1.8752743624842 2016 2.60379046438201 2017 3.35579400030648 2018 1.26282912430688 2019 1.43731396410693 2020 1.93029383948291 2021 4.03058059383138