Year Percent of GDP 2004-01-01 23.9170569324750 2005-01-01 25.2624306982514 2006-01-01 27.6005318822362 2007-01-01 33.9507886019217 2008-01-01 32.7914364005920 2009-01-01 35.2225379927920 2010-01-01 35.2243216056502 2011-01-01 30.9470005093693 2012-01-01 25.6977794967141 2013-01-01 25.8231995750071 2014-01-01 31.3856140491488 2015-01-01 32.2384878108421 2016-01-01 30.2139232973393 2017-01-01 34.1954094621888 2018-01-01 31.1164731698561 2019-01-01 32.3852659471481