Year Percent of GDP 2004-01-01 62.0591 2005-01-01 63.4579 2006-01-01 42.3702 2007-01-01 40.4190 2008-01-01 41.0825 2009-01-01 43.2442 2010-01-01 45.4914 2011-01-01 44.5156 2012-01-01 45.8323 2013-01-01 46.5545 2014-01-01 45.0513 2015-01-01 45.2390 2016-01-01 43.7325 2017-01-01 41.4113