Year	Percent of GDP
2004-01-01	9.0114
2005-01-01	12.4155
2006-01-01	14.5901
2007-01-01	18.3903
2008-01-01	17.3312
2009-01-01	22.2320
2010-01-01	26.1966
2011-01-01	25.4439
2012-01-01	27.9396
2013-01-01	27.3564
2014-01-01	29.2808
2015-01-01	29.2939
2016-01-01	30.4545
2017-01-01	30.9790