Year Percent of GDP 2004-01-01 82.6269572657789 2005-01-01 70.5229081233581 2006-01-01 29.3261709730025 2007-01-01 25.2003966571563 2008-01-01 22.2366113749231 2009-01-01 25.9721870091379 2010-01-01 23.4892672432643 2011-01-01 21.5877540236907 2012-01-01 22.7641658096917 2013-01-01 22.4603185431652 2014-01-01 22.6638879482234 2015-01-01 26.0027407706756 2016-01-01 25.3518324913620 2017-01-01 24.4213841070394 2018-01-01 24.9686912547697 2019-01-01 27.2412090391528