Year	Percent of GDP
2004-01-01	3.8561
2005-01-01	5.0400
2006-01-01	6.9380
2007-01-01	8.3107
2008-01-01	9.7984
2009-01-01	11.6915
2010-01-01	13.8640
2011-01-01	10.9732
2012-01-01	7.7334
2013-01-01	8.3146
2014-01-01	8.0885
2015-01-01	7.9094
2016-01-01	7.5862