Year	Percent of GDP
2004-01-01	3.4919
2005-01-01	3.6212
2006-01-01	3.6885
2007-01-01	3.7581
2008-01-01	3.9439
2009-01-01	4.0742
2010-01-01	3.8781
2011-01-01	3.7827
2012-01-01	3.8074
2013-01-01	3.9547
2014-01-01	4.1907
2015-01-01	4.4626
2016-01-01	4.8064