Year	Percent of GDP
2004-01-01	31.9459
2005-01-01	35.3294
2006-01-01	39.1994
2007-01-01	40.9122
2008-01-01	42.6513
2009-01-01	41.6134
2010-01-01	40.2778
2011-01-01	38.8508
2012-01-01	39.7566
2013-01-01	38.3888
2014-01-01	36.9520
2015-01-01	36.3267
2016-01-01	34.1538