Year	Percent of GDP
2004-01-01	31.7967
2005-01-01	51.7881
2006-01-01	59.1534
2007-01-01	61.3372
2008-01-01	50.7099
2009-01-01	45.1450
2010-01-01	45.5029
2011-01-01	46.5636
2012-01-01	44.8190
2013-01-01	45.7406
2014-01-01	44.5879
2015-01-01	41.3354
2016-01-01	39.5897
2017-01-01	41.7768