Year	Percent of GDP
2004-01-01	39.7332
2005-01-01	40.3180
2006-01-01	41.4848
2007-01-01	42.1914
2008-01-01	57.6098
2009-01-01	60.7410
2010-01-01	60.5286
2011-01-01	59.9819
2012-01-01	61.6553
2013-01-01	61.6953
2014-01-01	61.2593
2015-01-01	61.8437
2016-01-01	63.2590