Year	Percent of GDP
2004-01-01	1.7943
2005-01-01	2.7072
2006-01-01	3.4271
2007-01-01	4.2140
2008-01-01	2.9685
2009-01-01	4.9181
2010-01-01	5.9457
2011-01-01	6.4253
2012-01-01	6.2315
2013-01-01	6.6269
2014-01-01	7.7842
2015-01-01	9.6449
2016-01-01	8.3172
2017-01-01	8.1702