Year	Percent of GDP
2004-01-01	12.1516
2005-01-01	12.3332
2006-01-01	10.3920
2007-01-01	10.2515
2008-01-01	11.6448
2009-01-01	12.4366
2010-01-01	11.5754
2011-01-01	13.2326
2012-01-01	15.8080
2013-01-01	17.0541
2014-01-01	17.4086
2015-01-01	15.9742