Year Percent of GDP 2004-01-01 54.3975928484775 2005-01-01 59.1316781387256 2006-01-01 58.3942469080757 2007-01-01 58.3765294124962 2008-01-01 64.4701421365982 2009-01-01 51.9515481695274 2010-01-01 59.1822804347163 2011-01-01 64.1319147362534 2012-01-01 64.8458614332221 2013-01-01 61.5090107209529 2014-01-01 54.4660463518817 2015-01-01 43.4825882617489 2016-01-01 36.1559402521510 2017-01-01 41.2220910354380 2018-01-01 45.0781358708235 2019-01-01 45.5549256730111