Year	Percent of GDP
2004-01-01	41.5771
2005-01-01	41.4330
2006-01-01	40.1547
2007-01-01	40.0363
2008-01-01	38.9270
2009-01-01	40.5481
2010-01-01	40.3303
2011-01-01	40.8068
2012-01-01	41.2804
2013-01-01	45.4410
2014-01-01	48.5276
2015-01-01	49.6711
2016-01-01	47.3373
2017-01-01	48.4582