Year	Percent of GDP
2004-01-01	10.2967
2005-01-01	10.6413
2006-01-01	10.9944
2007-01-01	11.3648
2008-01-01	11.6477
2009-01-01	13.0299
2010-01-01	12.8691
2011-01-01	13.0353
2012-01-01	13.6243
2013-01-01	13.9662
2014-01-01	14.1649
2015-01-01	14.9233
2016-01-01	15.2762
2017-01-01	16.4738