Year	Percent of GDP
2004-01-01	4.1899
2005-01-01	4.2376
2006-01-01	4.3049
2007-01-01	4.3100
2008-01-01	4.1610
2009-01-01	4.2670
2010-01-01	4.4776
2011-01-01	4.0853
2012-01-01	3.6353
2013-01-01	3.2306
2014-01-01	3.0765
2015-01-01	2.7749
2016-01-01	2.3965