Year	Percent of GDP
2004-01-01	49.4431
2005-01-01	58.9839
2006-01-01	66.0870
2007-01-01	69.6688
2008-01-01	70.4718
2009-01-01	72.4593
2010-01-01	72.5044
2011-01-01	71.1459
2012-01-01	70.0127
2013-01-01	66.9833
2014-01-01	63.0680
2015-01-01	57.9768
2016-01-01	54.7870
2017-01-01	54.0515