Year Percent of GDP 2004-01-01 0.3590 2005-01-01 0.4728 2006-01-01 0.5586 2007-01-01 0.6120 2008-01-01 0.8042 2009-01-01 0.2813 2010-01-01 0.1961 2011-01-01 0.1846 2012-01-01 0.1961 2013-01-01 0.2268 2014-01-01 0.2622 2015-01-01 0.2733 2016-01-01 0.3112 2017-01-01 0.4149