Year	Percent of GDP
2004-01-01	28.9229
2005-01-01	29.4788
2006-01-01	30.0966
2007-01-01	30.5948
2008-01-01	35.0381
2009-01-01	35.6605
2010-01-01	37.6494
2011-01-01	37.5690
2012-01-01	38.6758
2013-01-01	41.6368
2014-01-01	43.8395
2015-01-01	47.4119
2016-01-01	50.2919