Year	Percent of GDP
2004-01-01	9.4334
2005-01-01	11.1532
2006-01-01	13.0201
2007-01-01	13.3174
2008-01-01	16.5061
2009-01-01	18.4819
2010-01-01	19.8222
2011-01-01	20.4661
2012-01-01	18.6738
2013-01-01	18.6228
2014-01-01	15.3035
2015-01-01	12.3144
2016-01-01	10.5581