Year	Percent of GDP
2004-01-01	15.7021
2005-01-01	15.4676
2006-01-01	15.1975
2007-01-01	14.7825
2008-01-01	14.6055
2009-01-01	15.4012
2010-01-01	14.6948
2011-01-01	14.1893
2012-01-01	14.0828
2013-01-01	13.9690
2014-01-01	13.7756
2015-01-01	13.6741
2016-01-01	13.9879
2017-01-01	14.6331