Year Percent of GDP 2004-01-01 0.7341 2005-01-01 0.5028 2006-01-01 0.5270 2007-01-01 0.4535 2008-01-01 0.4578 2009-01-01 1.0129 2010-01-01 1.0465 2011-01-01 1.0246 2012-01-01 0.8407 2013-01-01 1.0827 2014-01-01 1.2457 2015-01-01 1.8471 2016-01-01 2.3325