Year	Percent of GDP
2004-01-01	30.8071
2005-01-01	41.2634
2006-01-01	37.0543
2007-01-01	42.8698
2008-01-01	43.6157
2009-01-01	45.4968
2010-01-01	47.3200
2011-01-01	46.1511
2012-01-01	48.3865
2013-01-01	43.4173
2014-01-01	46.3786
2015-01-01	47.9475
2016-01-01	51.9254