Year	Percent of GDP
2004-01-01	4.1546
2005-01-01	4.1353
2006-01-01	4.1311
2007-01-01	4.0924
2008-01-01	4.1031
2009-01-01	4.0271
2010-01-01	4.2397
2011-01-01	3.7762
2012-01-01	3.3453
2013-01-01	2.9537
2014-01-01	2.8487
2015-01-01	2.5905
2016-01-01	2.1001