Year Percent of GDP 2004-01-01 13.90848200827640 2005-01-01 6.65097780336492 2006-01-01 12.91883327776520 2007-01-01 8.33263429145874 2008-01-01 5.14198479778327 2009-01-01 4.37305063955588 2010-01-01 8.08137132104549 2011-01-01 4.44069948194136 2012-01-01 14.89984620124270 2013-01-01 11.53089303005880 2014-01-01 17.20823522820160 2015-01-01 4.99816748963988 2016-01-01 -1.16206515832931 2017-01-01 16.79639321223490 2018-01-01 21.83610492045390 2019-01-01 21.29117794434480