Year % of GDP 2008 36.6420664206642 2009 46.4781254424466 2010 41.4537931034483 2011 38.951655281135 2012 101.033084869884 2013 85.7044234211199 2014 79.6994367311521 2015 8.57264573991031 2016 64.3393728222997