Year Percent of GDP 2004-01-01 64.5677 2005-01-01 67.6166 2006-01-01 74.5377 2007-01-01 78.4816 2008-01-01 84.6488 2009-01-01 88.7155 2010-01-01 89.2614 2011-01-01 89.8747 2012-01-01 84.4705 2013-01-01 83.3724 2014-01-01 80.4827 2015-01-01 78.1229 2016-01-01 76.0252