Year	Percent of GDP
2004-01-01	9.2902
2005-01-01	14.9682
2006-01-01	21.7892
2007-01-01	29.9015
2008-01-01	36.1647
2009-01-01	37.4629
2010-01-01	37.7606
2011-01-01	40.4027
2012-01-01	40.3572
2013-01-01	39.3839
2014-01-01	39.0456
2015-01-01	36.8970
2016-01-01	35.8078
