Year	Percent of GDP
2004-01-01	18.4014
2005-01-01	19.2623
2006-01-01	27.4057
2007-01-01	26.9985
2008-01-01	26.2663
2009-01-01	32.3802
2010-01-01	28.6161
2011-01-01	25.5819
2012-01-01	25.0933
2013-01-01	25.1251
2014-01-01	24.8912
2015-01-01	33.8922
2016-01-01	34.0483
2017-01-01	33.2911