Year	Percent of GDP
2004-01-01	1.9767
2005-01-01	1.9666
2006-01-01	2.3205
2007-01-01	2.7116
2008-01-01	2.4429
2009-01-01	2.5088
2010-01-01	2.3574
2011-01-01	3.0192
2012-01-01	3.2213
2013-01-01	3.3793
2014-01-01	3.3872
2015-01-01	3.5209
2016-01-01	3.5808