Year % of GDP 2000 107.560583524027 2001 97.4452869757175 2002 88.4198813376483 2003 99.8052941176471 2004 255.255953177258 2005 252.181780821918 2006 212.246058981233 2007 261.427822286963 2008 210.33600811124 2009 179.682319004525 2010 173.495780780781 2011 172.653044203503 2012 156.341098860713 2013 161.834072383437 2014 180.104322519084 2015 187.079634875669 2016 178.84317227333 2017 174.421497174668 2018 168.651175746384