Year Percent of GDP 2004-01-01 342.6656 2005-01-01 226.4065 2006-01-01 157.9094 2007-01-01 120.7552 2008-01-01 75.4507 2009-01-01 87.3751 2010-01-01 53.5326 2011-01-01 40.7191 2012-01-01 34.7818 2013-01-01 31.1525 2014-01-01 32.0281 2015-01-01 55.1247 2016-01-01 64.3708 2017-01-01 57.9800 2018-01-01 54.6924 2019-01-01 54.4353