Year	Percent of GDP
2004-01-01	40.5985
2005-01-01	45.4530
2006-01-01	47.1566
2007-01-01	47.7280
2008-01-01	46.0204
2009-01-01	50.5337
2010-01-01	47.4567
2011-01-01	46.0221
2012-01-01	44.5811
2013-01-01	46.5422
2014-01-01	49.3132
2015-01-01	52.4065
2016-01-01	53.5217
2017-01-01	57.5669