Year	Percent of GDP
2004-01-01	2.2216
2005-01-01	2.9831
2006-01-01	3.4471
2007-01-01	3.5635
2008-01-01	3.8021
2009-01-01	4.0397
2010-01-01	4.5052
2011-01-01	4.6323
2012-01-01	4.8909
2013-01-01	5.5035
2014-01-01	5.4579
2015-01-01	5.4681
2016-01-01	5.8117