Year	Percent of GDP
2004-01-01	22.7846
2005-01-01	25.6530
2006-01-01	27.6845
2007-01-01	30.7567
2008-01-01	28.7840
2009-01-01	32.7591
2010-01-01	33.1352
2011-01-01	33.0419
2012-01-01	33.0441
2013-01-01	33.7355
2014-01-01	34.8277
2015-01-01	35.5469
2016-01-01	35.9071
2017-01-01	39.6597