Year Percent of GDP 2004-01-01 104.6836 2005-01-01 115.5883 2006-01-01 124.7918 2007-01-01 130.4564 2008-01-01 141.5147 2009-01-01 141.6640 2010-01-01 135.6939 2011-01-01 129.9183 2012-01-01 132.8930 2013-01-01 130.5032 2014-01-01 131.0632 2015-01-01 134.6615 2016-01-01 137.4201