Year % of GDP 2005 149.162954428634 2006 125.142287444864 2007 130.873465886673 2008 141.896631136007 2009 151.906297559411 2010 148.949141410637 2011 153.514328786033 2012 150.625151074239 2013 143.90812195916 2014 136.104241768222 2015 130.5684479028 2016 124.071820445332 2017 116.178957586423 2018 116.156588327677