Year	Percent of GDP
2004-01-01	68.0325
2005-01-01	69.0926
2006-01-01	68.6541
2007-01-01	68.8128
2008-01-01	74.9989
2009-01-01	77.8737
2010-01-01	80.3710
2011-01-01	87.0265
2012-01-01	87.1631
2013-01-01	88.5228
2014-01-01	87.6686
2015-01-01	87.0521
2016-01-01	86.3894
2017-01-01	88.7161