Year	Percent of GDP
2004-01-01	34.6915
2005-01-01	36.7749
2006-01-01	36.8990
2007-01-01	38.0660
2008-01-01	39.4807
2009-01-01	38.5611
2010-01-01	38.6047
2011-01-01	38.6663
2012-01-01	44.3847
2013-01-01	43.7714
2014-01-01	47.3104
2015-01-01	45.4732
2016-01-01	44.9293
2017-01-01	49.7441