Year	Percent of GDP
2004-01-01	54.6537
2005-01-01	54.6040
2006-01-01	57.4222
2007-01-01	59.9485
2008-01-01	62.4192
2009-01-01	70.4482
2010-01-01	71.3767
2011-01-01	72.6106
2012-01-01	74.7492
2013-01-01	74.5241
2014-01-01	74.3217
2015-01-01	77.0163
2016-01-01	81.5894
2017-01-01	84.1265