Year	Percent of GDP
2004-01-01	62.8710
2005-01-01	63.2408
2006-01-01	63.9506
2007-01-01	64.8417
2008-01-01	68.9070
2009-01-01	75.4051
2010-01-01	75.5644
2011-01-01	78.5622
2012-01-01	80.3908
2013-01-01	81.0367
2014-01-01	81.5935
2015-01-01	81.0566
2016-01-01	81.0139
2017-01-01	83.0838