Year % of GDP 1995 0.1894052870781 1996 0.157528095724954 1997 0.160086250604738 1998 0.0160340237876244 1999 0.0196126156772976 2000 0.176674487364417 2001 0.396410593313288 2002 0.241271445951601 2003 0.214753155142564 2004 0.159234241412183 2005 0.12906463895286 2006 0.304770836075399 2007 0.345824936878855 2008 0.449762185799552 2009 0.337104007943048 2010 0.423248920946002 2011 0.590019896003995 2012 0.559782333488413 2013 0.435741263753703 2014 0.289997413757728 2015 0.267533069090353 2016 0.133193976413268 2017 0.156560711183931 2018 0.197945973157546 2019 0.101877299594189 2020 0.0454518090024755 2021 0.183195535140786