Year	Percent of GDP
2004-01-01	4.2923
2005-01-01	4.3183
2006-01-01	4.6238
2007-01-01	5.5438
2008-01-01	5.7280
2009-01-01	9.4068
2010-01-01	10.4363
2011-01-01	12.9718
2012-01-01	15.1477
2013-01-01	17.6112
2014-01-01	18.8035
2015-01-01	20.3033
2016-01-01	23.1379