Year Percent of GDP 2004-01-01 0.0001 2005-01-01 0.0027 2006-01-01 0.0018 2007-01-01 0.0031 2008-01-01 0.0035 2009-01-01 0.0041 2010-01-01 0.0075 2011-01-01 0.0070 2012-01-01 0.4264 2013-01-01 0.4519 2014-01-01 0.5229 2015-01-01 0.6105 2016-01-01 0.3915