Year	Percent of GDP
2004-01-01	26.0921
2005-01-01	28.5615
2006-01-01	26.7447
2007-01-01	27.1560
2008-01-01	28.3231
2009-01-01	22.5683
2010-01-01	20.5352
2011-01-01	17.0454
2012-01-01	17.0645
2013-01-01	16.4051
2014-01-01	16.1178
2015-01-01	15.9312
2016-01-01	16.7853