Year	Percent of GDP
2004-01-01	4.6780
2005-01-01	8.0818
2006-01-01	15.0756
2007-01-01	22.2628
2008-01-01	29.5927
2009-01-01	26.4206
2010-01-01	19.4205
2011-01-01	15.4840
2012-01-01	13.3615
2013-01-01	13.2169
2014-01-01	13.3167
2015-01-01	8.7956
2016-01-01	6.8629
2017-01-01	7.3124