Year	Percent of GDP
2004-01-01	39.0976
2005-01-01	42.9800
2006-01-01	41.8633
2007-01-01	42.2097
2008-01-01	53.1888
2009-01-01	62.7374
2010-01-01	64.3406
2011-01-01	66.7306
2012-01-01	71.1759
2013-01-01	70.2123
2014-01-01	70.0679
2015-01-01	70.4134