Year	Percent of GDP
2004-01-01	1.7527
2005-01-01	2.1779
2006-01-01	2.9941
2007-01-01	4.4292
2008-01-01	4.0380
2009-01-01	5.2306
2010-01-01	5.7473
2011-01-01	7.2894
2012-01-01	7.7230
2013-01-01	8.7162