Year Percent of GDP 2004-01-01 48.4306667337930 2005-01-01 51.2207308648626 2006-01-01 51.6372624536454 2007-01-01 51.8008060089516 2008-01-01 50.3408892200598 2009-01-01 50.2087647149131 2010-01-01 53.3667314630222 2011-01-01 64.4721284890599 2012-01-01 59.2054692058829 2013-01-01 66.2849887529497 2014-01-01 57.7452160474464 2015-01-01 57.8134341392003 2016-01-01 53.2367961677912 2017-01-01 50.0317952744554 2018-01-01 51.1741257485343 2019-01-01 49.7155031386216