Year	Percent of GDP
2004-01-01	52.2293
2005-01-01	51.8003
2006-01-01	56.2887
2007-01-01	52.1181
2008-01-01	59.9660
2009-01-01	70.7422
2010-01-01	72.9718
2011-01-01	60.1644
2012-01-01	56.9371
2013-01-01	55.3768
2014-01-01	63.0252
2015-01-01	59.2430
2016-01-01	61.9837