Year	Percent of GDP
2004-01-01	16.8621
2005-01-01	17.0199
2006-01-01	16.8889
2007-01-01	16.8504
2008-01-01	14.2325
2009-01-01	15.7389
2010-01-01	15.3242
2011-01-01	14.8162
2012-01-01	15.9598
2013-01-01	16.0814
2014-01-01	15.4835
2015-01-01	17.8777
2016-01-01	18.6199
2017-01-01	24.0885