Year Percent of GDP 2004-01-01 39.3132962762556 2005-01-01 33.3679340888725 2006-01-01 32.2938433717247 2007-01-01 35.9515531593640 2008-01-01 47.2407468321724 2009-01-01 51.4098546821068 2010-01-01 42.0343090624367 2011-01-01 36.4093058752281 2012-01-01 35.8301185890612 2013-01-01 32.0170522397251 2014-01-01 34.6524944408200 2015-01-01 35.7506078758135 2016-01-01 32.5344582016557 2017-01-01 31.5072757208886 2018-01-01 32.6172963408401 2019-01-01 31.6514438912369