Year Percent of GDP 2004-01-01 90.7429741294097 2005-01-01 80.8049463350593 2006-01-01 13.2118655493527 2007-01-01 12.9840228952692 2008-01-01 13.3197991291073 2009-01-01 12.9001903425528 2010-01-01 12.4401544567829 2011-01-01 11.3729417723376 2012-01-01 20.0649236727093 2013-01-01 26.6446028981886 2014-01-01 30.0182332565785 2015-01-01 27.8497918185854 2016-01-01 32.6853099607326 2017-01-01 32.3876635774676 2018-01-01 30.8109693307105 2019-01-01 31.2582824000695