Year	Percent of GDP
2004-01-01	0.4231
2005-01-01	0.4614
2006-01-01	0.5053
2007-01-01	0.5891
2008-01-01	0.7045
2009-01-01	0.7570
2010-01-01	0.7757
2011-01-01	0.8684
2012-01-01	0.9881
2013-01-01	1.0949
2014-01-01	1.1895
2015-01-01	1.2857
2016-01-01	1.3509
2017-01-01	1.5492