Year	Percent of GDP
2004-01-01	22.1040
2005-01-01	24.4488
2006-01-01	28.6860
2007-01-01	35.3777
2008-01-01	38.1791
2009-01-01	39.5029
2010-01-01	36.5252
2011-01-01	35.8916
2012-01-01	38.5607
2013-01-01	42.6250
2014-01-01	46.7196
2015-01-01	47.2067
2016-01-01	42.5930