Year	Percent of GDP
2004-01-01	7.8902
2005-01-01	12.7910
2006-01-01	18.8643
2007-01-01	24.7201
2008-01-01	26.4601
2009-01-01	30.6556
2010-01-01	27.7407
2011-01-01	23.6059
2012-01-01	21.5848
2013-01-01	20.4550
2014-01-01	19.5900
2015-01-01	20.0924
2016-01-01	20.7887
2017-01-01	22.2970