Year	Percent of GDP
2004-01-01	21.6744
2005-01-01	22.9782
2006-01-01	20.2655
2007-01-01	19.1691
2008-01-01	16.7269
2009-01-01	17.3053
2010-01-01	14.2987
2011-01-01	14.5465
2012-01-01	15.9590
2013-01-01	16.7867
2014-01-01	20.4356
2015-01-01	20.9543
2016-01-01	24.8447