Year	Percent of GDP
2004-01-01	18.1963
2005-01-01	19.1694
2006-01-01	26.0442
2007-01-01	31.0063
2008-01-01	35.7218
2009-01-01	47.2485
2010-01-01	54.4314
2011-01-01	50.8798
2012-01-01	39.2106
2013-01-01	39.9610
2014-01-01	40.3535
2015-01-01	43.4369
2016-01-01	38.0094