Year	Percent of GDP
2004-01-01	1.8362
2005-01-01	2.2620
2006-01-01	2.5272
2007-01-01	2.7920
2008-01-01	3.0423
2009-01-01	3.2526
2010-01-01	3.4225
2011-01-01	3.5242
2012-01-01	3.6542
2013-01-01	3.9214
2014-01-01	3.9162
2015-01-01	3.7479
2016-01-01	3.7076