Year % of GDP 2006 0.5724828036984987 2007 0.3554517077088772 2008 2.0735684065921527 2009 -5.1031816967510215 2010 -2.9844692357788034 2011 -0.2920719131231757 2012 0.3426449739419578 2013 -2.996264632609563 2014 0.12772202656735945 2015 -0.7589860503568122 2016 -1.1501477598543763 2017 0.07945701044929696 2018 -1.8073086919085375