Year Percent of GDP 2000-01-01 111.4289 2001-01-01 99.3947 2002-01-01 98.6446 2003-01-01 69.8385 2004-01-01 49.4621 2005-01-01 45.8356 2006-01-01 36.7250 2007-01-01 34.1566 2008-01-01 30.2286 2009-01-01 36.9395 2010-01-01 36.8377 2011-01-01 35.9114 2012-01-01 32.3768 2013-01-01 29.0920 2014-01-01 27.5462 2015-01-01 34.2590 2016-01-01 41.8202 2017-01-01 47.7836 2018-01-01 50.1506 2019-01-01 49.8780