Year % of GDP 2002 0.08418062 2003 0.65096337 2004 0.54292566 2005 0.5291841 2006 0.49784002 2007 0.55994755 2008 0.62779975 2009 0.53190351 2010 0.46915731 2011 0.47999981 2012 0.34288675 2013 0.44335932 2014 0.47265697 2015 0.52267277 2016 0.60012972 2017 0.64313394 2018 0.55239552 2019 0.49705607 2020 1.18621242 2021 0.72091633