Year	Percent of GDP
2004-01-01	3.1468
2005-01-01	4.8658
2006-01-01	6.9733
2007-01-01	8.9135
2008-01-01	9.7041
2009-01-01	9.1821
2010-01-01	8.7915
2011-01-01	9.2794
2012-01-01	11.5377
2013-01-01	13.9907
2014-01-01	14.2723
2015-01-01	12.8031
2016-01-01	12.5339