Year	Percent of GDP
2004-01-01	4.4110
2005-01-01	4.6047
2006-01-01	4.4487
2007-01-01	4.3403
2008-01-01	4.5540
2009-01-01	4.9587
2010-01-01	4.8731
2011-01-01	5.0169
2012-01-01	5.1752
2013-01-01	5.0017
2014-01-01	4.8682
2015-01-01	4.8328
2016-01-01	4.8364
2017-01-01	4.9845