Year	Percent of GDP
2004-01-01	14.8069
2005-01-01	16.4969
2006-01-01	22.6782
2007-01-01	30.0653
2008-01-01	31.9227
2009-01-01	34.5749
2010-01-01	31.3974
2011-01-01	28.0547
2012-01-01	32.0669
2013-01-01	38.5904
2014-01-01	41.6923
2015-01-01	50.2556
2016-01-01	63.6046
2017-01-01	68.6680