Year	Percent of GDP
2004-01-01	22.5422
2005-01-01	19.4122
2006-01-01	23.2978
2007-01-01	25.3560
2008-01-01	31.5981
2009-01-01	38.1384
2010-01-01	42.8709
2011-01-01	49.2367
2012-01-01	48.6528
2013-01-01	47.9494
2014-01-01	46.2735
2015-01-01	46.9628
2016-01-01	47.8676