Year	Percent of GDP
2004-01-01	2.7874
2005-01-01	3.0438
2006-01-01	3.3061
2007-01-01	3.4982
2008-01-01	3.4917
2009-01-01	3.4716
2010-01-01	3.3401
2011-01-01	3.4719
2012-01-01	3.7109
2013-01-01	3.7197
2014-01-01	3.6708
2015-01-01	3.6325
2016-01-01	3.6936