Year	Percent of GDP
2004-01-01	16.8790
2005-01-01	25.4375
2006-01-01	35.5989
2007-01-01	37.5442
2008-01-01	37.2233
2009-01-01	45.7592
2010-01-01	45.2684
2011-01-01	36.8924
2012-01-01	30.0560
2013-01-01	26.4792
2014-01-01	23.7261
2015-01-01	22.0603
2016-01-01	21.1300