Year	Percent of GDP
2004-01-01	1.9349
2005-01-01	2.5437
2006-01-01	3.1025
2007-01-01	4.0401
2008-01-01	4.5690
2009-01-01	4.4621
2010-01-01	3.9646
2011-01-01	4.2530
2012-01-01	4.7268
2013-01-01	5.2331
2014-01-01	5.7710
2015-01-01	6.3230
2016-01-01	6.7813
2017-01-01	7.5043