Year	Percent of GDP
2004-01-01	33.9093
2005-01-01	36.7527
2006-01-01	39.1727
2007-01-01	38.1831
2008-01-01	33.0244
2009-01-01	29.0981
2010-01-01	27.5067
2011-01-01	32.2633
2012-01-01	32.4156
2013-01-01	32.1038
2014-01-01	33.3349
2015-01-01	38.8828