Year	Percent of GDP
2004-01-01	67.1551
2005-01-01	66.7144
2006-01-01	63.4488
2007-01-01	61.0514
2008-01-01	63.1763
2009-01-01	61.4258
2010-01-01	59.7887
2011-01-01	65.3615
2012-01-01	68.1196
2013-01-01	72.3070
2014-01-01	73.7936
2015-01-01	74.7449
2016-01-01	73.4815