Year	Percent of GDP
2004-01-01	0.3611
2005-01-01	0.4173
2006-01-01	0.4193
2007-01-01	0.4502
2008-01-01	0.5358
2009-01-01	0.5908
2010-01-01	0.6373
2011-01-01	0.6932
2012-01-01	0.7685
2013-01-01	0.9078
2014-01-01	1.0326
2015-01-01	1.1960
2016-01-01	1.2603
2017-01-01	1.4106