Year	Percent of GDP
2004-01-01	34.0960
2005-01-01	39.3057
2006-01-01	45.5236
2007-01-01	50.7424
2008-01-01	48.6765
2009-01-01	50.2486
2010-01-01	53.1260
2011-01-01	55.6557
2012-01-01	59.7949
2013-01-01	65.0937
2014-01-01	65.6309
2015-01-01	68.8440
2016-01-01	69.9986
2017-01-01	75.4577