Year	Percent of GDP
2004-01-01	6.9513
2005-01-01	8.1099
2006-01-01	8.7197
2007-01-01	13.3283
2008-01-01	17.6095
2009-01-01	22.6128
2010-01-01	26.0020
2011-01-01	32.3759
2012-01-01	36.3665
2013-01-01	38.0812
2014-01-01	43.4174
2015-01-01	40.0969
2016-01-01	41.7896