Year	Percent of GDP
2004-01-01	39.4610
2005-01-01	38.2240
2006-01-01	38.0181
2007-01-01	36.9831
2008-01-01	45.2912
2009-01-01	43.9522
2010-01-01	41.8371
2011-01-01	42.0507
2012-01-01	44.5281
2013-01-01	46.2489
2014-01-01	45.0716
2015-01-01	44.8730
2016-01-01	45.4141