Year Percent of GDP 2004-01-01 45.2268 2005-01-01 47.0156 2006-01-01 48.5281 2007-01-01 50.2178 2008-01-01 50.8704 2009-01-01 47.1544 2010-01-01 45.9779 2011-01-01 43.8624 2012-01-01 43.4062 2013-01-01 42.7529 2014-01-01 43.6556 2015-01-01 45.3589 2016-01-01 46.7374