Year	Percent of GDP
2004-01-01	25.1762
2005-01-01	30.1050
2006-01-01	32.1289
2007-01-01	33.0350
2008-01-01	29.2306
2009-01-01	37.0882
2010-01-01	38.6462
2011-01-01	35.4375
2012-01-01	35.7391
2013-01-01	35.6213
2014-01-01	38.8876
2015-01-01	40.2090
2016-01-01	41.6336
2017-01-01	44.7416