Year	Percent of GDP
2004-01-01	27.3914
2005-01-01	30.2711
2006-01-01	33.8279
2007-01-01	37.0847
2008-01-01	34.5775
2009-01-01	36.9458
2010-01-01	39.3819
2011-01-01	39.9679
2012-01-01	41.7397
2013-01-01	44.5034
2014-01-01	46.3890
2015-01-01	47.8887
2016-01-01	50.0999
2017-01-01	54.5979