Year	Percent of GDP
2004-01-01	0.6508
2005-01-01	0.7981
2006-01-01	0.8822
2007-01-01	1.0924
2008-01-01	1.2609
2009-01-01	1.3997
2010-01-01	1.5528
2011-01-01	1.6797
2012-01-01	1.6773
2013-01-01	1.5701
2014-01-01	1.6259
2015-01-01	1.5750
2016-01-01	1.5676
2017-01-01	1.5626