Year	Percent of GDP
2004-01-01	6.0726
2005-01-01	6.7478
2006-01-01	8.2021
2007-01-01	9.3190
2008-01-01	9.2857
2009-01-01	9.1863
2010-01-01	9.7334
2011-01-01	11.5615
2012-01-01	12.8291
2013-01-01	13.8359
2014-01-01	14.8530
2015-01-01	17.1395
2016-01-01	18.0734
2017-01-01	19.8338