Year	Percent of GDP
2004-01-01	53.1491
2005-01-01	51.6419
2006-01-01	50.8945
2007-01-01	52.2522
2008-01-01	59.0923
2009-01-01	60.8476
2010-01-01	60.6657
2011-01-01	68.6158
2012-01-01	71.6895
2013-01-01	71.8955
2014-01-01	70.9077
2015-01-01	71.0502
2016-01-01	69.5248
2017-01-01	69.2140