Year Percent of GDP 2004-01-01 50.2172006012233 2005-01-01 55.5123595084791 2006-01-01 57.0413245389689 2007-01-01 54.2527555630439 2008-01-01 49.3101240439888 2009-01-01 45.5311973018549 2010-01-01 49.4059235542625 2011-01-01 50.5989771569075 2012-01-01 51.8676004921779 2013-01-01 46.5180976216242 2014-01-01 49.0986119542318 2015-01-01 47.2667257064649 2016-01-01 42.7265304244822 2017-01-01 40.2900316576190 2018-01-01 39.5259326326217 2019-01-01 39.3223179242615