Year	Percent of GDP
2004-01-01	9.3114
2005-01-01	11.6225
2006-01-01	13.2316
2007-01-01	14.5419
2008-01-01	13.9064
2009-01-01	14.0030
2010-01-01	13.7738
2011-01-01	13.6384
2012-01-01	13.5357
2013-01-01	13.6332
2014-01-01	12.9505
2015-01-01	12.3383
2016-01-01	12.2928