Year Percent of GDP 2004-01-01 33.5430568943344 2005-01-01 41.1579492246657 2006-01-01 43.4289780699926 2007-01-01 39.7427858902770 2008-01-01 37.6913076204955 2009-01-01 26.3288453602348 2010-01-01 34.8332177486520 2011-01-01 37.8760362810356 2012-01-01 37.2283305695358 2013-01-01 32.0067502974892 2014-01-01 29.8067577566998 2015-01-01 28.4909181291986 2016-01-01 24.4865431543967 2017-01-01 28.5833973907606 2018-01-01 24.2562299049833 2019-01-01 24.2240636741421