Year Percent of GDP 2004-01-01 115.1423432769150 2005-01-01 106.5653342666530 2006-01-01 28.0787296116908 2007-01-01 28.4346337502914 2008-01-01 36.2029270030847 2009-01-01 35.6441651084169 2010-01-01 29.6452674414964 2011-01-01 30.6494255434387 2012-01-01 43.9183184985068 2013-01-01 59.2507950040841 2014-01-01 55.2397698559186 2015-01-01 61.0919921068237 2016-01-01 60.2785014418109 2017-01-01 59.1556476002557 2018-01-01 57.8529636148819 2019-01-01 57.6272145237950