Year	Percent of GDP
2004-01-01	58.4522
2005-01-01	59.4734
2006-01-01	62.1787
2007-01-01	65.8006
2008-01-01	70.4868
2009-01-01	75.8132
2010-01-01	76.6862
2011-01-01	78.3406
2012-01-01	73.2592
2013-01-01	72.6825
2014-01-01	72.9868
2015-01-01	71.4141
2016-01-01	74.6767