Year	Percent of GDP
2004-01-01	0.1066
2005-01-01	0.1175
2006-01-01	0.1344
2007-01-01	0.2640
2008-01-01	0.2923
2009-01-01	0.3305
2010-01-01	0.3709
2011-01-01	0.2354
2012-01-01	0.2648
2013-01-01	0.2501
2014-01-01	0.1984
2015-01-01	0.2136
2016-01-01	0.2131
2017-01-01	0.2317