Year % of GDP 2003 37.19767305350078 2004 38.67162553367855 2005 40.38411638970407 2006 53.950403183443875 2007 95.2458297722753 2008 36.48952150527834 2009 65.93759656603977 2010 65.08176569155107 2011 46.01570284914513 2012 50.07079977766147 2013 46.46877963960009 2014 53.303133560874585 2015 59.860909339209066 2016 57.97183212395509 2017 66.30722791333933 2018 49.402938951393175 2019 59.82070404427412 2020 79.6630071419302 2021 77.90067611676128 2022 65.78795291187166