Year	Percent of GDP
2004-01-01	44.9317
2005-01-01	39.7626
2006-01-01	41.8890
2007-01-01	46.0323
2008-01-01	43.4076
2009-01-01	58.4512
2010-01-01	49.7204
2011-01-01	43.8447
2012-01-01	45.6758
2013-01-01	50.0720
2014-01-01	55.5502
2015-01-01	65.4070
2016-01-01	68.5388