Year	Percent of GDP
2004-01-01	4.5821
2005-01-01	6.7571
2006-01-01	8.5103
2007-01-01	10.5172
2008-01-01	11.5021
2009-01-01	12.6555
2010-01-01	14.4603
2011-01-01	15.5274
2012-01-01	16.3239
2013-01-01	17.5744
2014-01-01	16.6895
2015-01-01	15.7525
2016-01-01	15.6034
2017-01-01	18.1728