Year	Percent of GDP
2004-01-01	20.1244
2005-01-01	17.9059
2006-01-01	18.2617
2007-01-01	19.9980
2008-01-01	22.9526
2009-01-01	26.9044
2010-01-01	25.4666
2011-01-01	26.0787
2012-01-01	30.8811
2013-01-01	31.7705
2014-01-01	30.9296
2015-01-01	33.1044
2016-01-01	30.8476