Year	Percent of GDP
2004-01-01	13.8814
2005-01-01	14.0745
2006-01-01	11.9073
2007-01-01	10.7552
2008-01-01	9.6206
2009-01-01	12.3693
2010-01-01	9.8652
2011-01-01	12.4370
2012-01-01	13.6877
2013-01-01	12.9259
2014-01-01	13.7917
2015-01-01	14.4689
2016-01-01	17.2302