Year	Percent of GDP
2004-01-01	56.7190
2005-01-01	60.2368
2006-01-01	66.5805
2007-01-01	69.9882
2008-01-01	71.5001
2009-01-01	75.8357
2010-01-01	75.7007
2011-01-01	76.4056
2012-01-01	76.6492
2013-01-01	72.3880
2014-01-01	68.3295
2015-01-01	63.3054
2016-01-01	59.9193
2017-01-01	59.3807