Year % of GDP 2003 37.19767305350078 2004 38.671625533678544 2005 40.38411638970407 2006 53.950403183443875 2007 95.24582977227533 2008 36.48952150527834 2009 65.93759656603976 2010 65.08176569155106 2011 46.01570284914513 2012 50.07079977766144 2013 46.468779639600086 2014 53.303133560874585 2015 59.860909339209044 2016 57.97183212395511 2017 66.30722791333933 2018 49.398063508505444 2019 59.81006231838135 2020 79.646101411883 2021 77.88501369863025 2022 65.77211952081029