Year	Percent of GDP
2004-01-01	53.9366
2005-01-01	53.0728
2006-01-01	49.4825
2007-01-01	56.7031
2008-01-01	60.3092
2009-01-01	61.5668
2010-01-01	60.0781
2011-01-01	58.7087
2012-01-01	60.4432
2013-01-01	61.2517
2014-01-01	60.4212
2015-01-01	61.5250
2016-01-01	62.8823
2017-01-01	66.5118