Year	Percent of GDP
2004-01-01	10.9057611111111
2005-01-01	11.5093603472222
2006-01-01	12.1510793559517
2007-01-01	12.3620336042065
2008-01-01	12.7911030474041
2009-01-01	11.7729800457965
2010-01-01	11.7929223158598
2011-01-01	12.9912060302797
2012-01-01	15.1878898976413
2013-01-01	15.4121869051735
2014-01-01	16.5807159130259
2015-01-01	19.7395515646227
2016-01-01	19.2598698526430
2017-01-01	19.2715679068087