Year Percent of GDP 2004-01-01 0.7480 2005-01-01 0.5775 2006-01-01 0.7194 2007-01-01 0.7597 2008-01-01 0.4456 2009-01-01 0.5400 2010-01-01 0.5724 2011-01-01 0.5462 2012-01-01 0.4642 2013-01-01 0.4652 2014-01-01 0.4455 2015-01-01 0.4476 2016-01-01 0.4263