Year	Percent of GDP
2004-01-01	6.7181
2005-01-01	5.1087
2006-01-01	4.6355
2007-01-01	5.7019
2008-01-01	5.4527
2009-01-01	8.6487
2010-01-01	10.1931
2011-01-01	8.0898
2012-01-01	11.7524
2013-01-01	13.1703
2014-01-01	11.9658
2015-01-01	16.1428
2016-01-01	16.1850