Year	Percent of GDP
2004-01-01	16.1443
2005-01-01	17.1144
2006-01-01	25.6206
2007-01-01	30.0932
2008-01-01	29.4267
2009-01-01	31.0858
2010-01-01	31.6642
2011-01-01	29.4232
2012-01-01	28.9744
2013-01-01	31.9953
2014-01-01	29.5623
2015-01-01	31.3883