Year	Percent of GDP
2004-01-01	75.9203
2005-01-01	73.8169
2006-01-01	72.2466
2007-01-01	70.7650
2008-01-01	72.0961
2009-01-01	74.5409
2010-01-01	78.1119
2011-01-01	80.1049
2012-01-01	77.6100
2013-01-01	78.5458
2014-01-01	75.2248
2015-01-01	69.6015
2016-01-01	68.8899
2017-01-01	72.2769