Year	Percent of GDP
2004-01-01	9.7256
2005-01-01	11.6008
2006-01-01	13.3886
2007-01-01	15.2327
2008-01-01	18.9535
2009-01-01	18.9474
2010-01-01	19.3987
2011-01-01	18.1293
2012-01-01	17.4935
2013-01-01	18.0537
2014-01-01	19.1780
2015-01-01	24.7642
2016-01-01	23.2919