Year	Percent of GDP
2004-01-01	9.9039
2005-01-01	12.9092
2006-01-01	15.0891
2007-01-01	19.5758
2008-01-01	23.2216
2009-01-01	23.1694
2010-01-01	22.9069
2011-01-01	23.7498
2012-01-01	23.6114
2013-01-01	22.4244
2014-01-01	22.3871
2015-01-01	22.7573
2016-01-01	23.6916