Year Percent of GDP 2004-01-01 92.0841872520730 2005-01-01 67.0002978222222 2006-01-01 23.6946751282346 2007-01-01 23.5133852772467 2008-01-01 19.4834789315275 2009-01-01 19.5194138681426 2010-01-01 19.9631464200023 2011-01-01 19.8507020744905 2012-01-01 19.9697078604301 2013-01-01 26.7422190649548 2014-01-01 29.1306522155564 2015-01-01 33.3543393007326 2016-01-01 37.2870804567103 2017-01-01 40.4559534011627 2018-01-01 42.6040056454862 2019-01-01 43.4399350033050