Year	Percent of GDP
2004-01-01	15.5146
2005-01-01	17.5701
2006-01-01	16.9539
2007-01-01	18.6220
2008-01-01	15.7199
2009-01-01	16.7469
2010-01-01	16.1033
2011-01-01	13.8783
2012-01-01	12.9103
2013-01-01	13.1553
2014-01-01	16.2671
2015-01-01	15.4828
2016-01-01	18.5028