Year % of GDP 1995 0.0694986490699799 1996 0.17168299455963815 1997 0.2601016713301729 1998 0.27933194740993056 2005 0.9692136197447359 2006 1.319728371178701 2007 5.324614057211397 2008 4.300301394024569 2009 1.3481352073224349 2010 1.2517080914789886 2011 0.8649613592138324 2012 0.7973482948172036 2013 1.0848885752753796 2014 0.8879056687492186 2015 0.8549338521590744 2019 0.476796605713764 2020 0.4747626315647573