Year	Percent of GDP
2004-01-01	15.3529
2005-01-01	14.4832
2006-01-01	15.1539
2007-01-01	18.4727
2008-01-01	21.0648
2009-01-01	26.9956
2010-01-01	31.1415
2011-01-01	28.5480
2012-01-01	27.1955
2013-01-01	29.6089
2014-01-01	32.6351
2015-01-01	29.6498
2016-01-01	30.3266