Year	Percent of GDP
2004-01-01	16.4722
2005-01-01	16.0396
2006-01-01	16.1198
2007-01-01	18.5638
2008-01-01	19.9560
2009-01-01	23.0421
2010-01-01	23.0983
2011-01-01	21.6701
2012-01-01	21.8279
2013-01-01	14.8943
2014-01-01	22.2149
2015-01-01	20.7836
2016-01-01	26.3402