Year Percent of GDP 2004-01-01 56.8473 2005-01-01 64.3007 2006-01-01 69.5323 2007-01-01 76.1978 2008-01-01 79.7928 2009-01-01 76.4463 2010-01-01 109.7403 2011-01-01 115.4758 2012-01-01 114.5170 2013-01-01 116.3725 2014-01-01 114.9627 2015-01-01 112.2405 2016-01-01 109.1215 2017-01-01 102.7328