Year	Percent of GDP
2004-01-01	22.6625
2005-01-01	24.6596
2006-01-01	28.2342
2007-01-01	37.5690
2008-01-01	36.7623
2009-01-01	36.1856
2010-01-01	33.8500
2011-01-01	36.2040
2012-01-01	39.6497
2013-01-01	41.9633
2014-01-01	35.3962
2015-01-01	29.6988
2016-01-01	24.8037
2017-01-01	24.8916