Year	Percent of GDP
2004-01-01	39.0434
2005-01-01	36.9677
2006-01-01	38.5378
2007-01-01	38.7325
2008-01-01	43.0665
2009-01-01	43.5521
2010-01-01	43.6412
2011-01-01	43.2801
2012-01-01	44.1902
2013-01-01	45.1983
2014-01-01	45.4994
2015-01-01	48.2341
2016-01-01	49.1498
2017-01-01	51.9847