Year	Percent of GDP
2004-01-01	59.8717
2005-01-01	61.7057
2006-01-01	66.2027
2007-01-01	67.4305
2008-01-01	71.9706
2009-01-01	76.7806
2010-01-01	78.9948
2011-01-01	77.6695
2012-01-01	80.0734
2013-01-01	84.6183
2014-01-01	82.6726
2015-01-01	79.5146
2016-01-01	79.0877
2017-01-01	81.2447