Year	Percent of GDP
2004-01-01	34.7170
2005-01-01	34.3190
2006-01-01	34.7114
2007-01-01	34.9545
2008-01-01	37.1942
2009-01-01	40.7638
2010-01-01	42.3745
2011-01-01	43.4019
2012-01-01	44.6141
2013-01-01	45.2509
2014-01-01	45.5143
2015-01-01	45.5508
2016-01-01	47.7388
2017-01-01	51.2228