Year Percent of GDP 2004-01-01 96.6355 2005-01-01 114.7887 2006-01-01 133.7227 2007-01-01 145.2400 2008-01-01 148.4593 2009-01-01 150.8114 2010-01-01 149.0336 2011-01-01 143.4752 2012-01-01 132.4014 2013-01-01 120.9436 2014-01-01 110.6184 2015-01-01 101.4015 2016-01-01 94.6900 2017-01-01 92.5811