Year	Percent of GDP
2004-01-01	70.9749
2005-01-01	58.8082
2006-01-01	59.7840
2007-01-01	58.9804
2008-01-01	57.0593
2009-01-01	63.5588
2010-01-01	63.9495
2011-01-01	65.5711
2012-01-01	64.0593
2013-01-01	61.9673
2014-01-01	58.9677
2015-01-01	54.7157
2016-01-01	53.3524
2017-01-01	55.0898