Year	Percent of GDP
2004-01-01	15.3937
2005-01-01	17.2782
2006-01-01	18.3947
2007-01-01	25.6113
2008-01-01	35.2845
2009-01-01	39.5856
2010-01-01	19.5372
2011-01-01	19.3527
2012-01-01	19.8162
2013-01-01	20.6762
2014-01-01	19.9650
2015-01-01	18.1668
2016-01-01	17.8649