Year	Percent of GDP
2004-01-01	33.2832
2005-01-01	40.1213
2006-01-01	36.8220
2007-01-01	40.0542
2008-01-01	39.3956
2009-01-01	43.9165
2010-01-01	48.2002
2011-01-01	48.4416
2012-01-01	46.3742
2013-01-01	48.7893
2014-01-01	51.5685
2015-01-01	52.1927
2016-01-01	50.3375