Year	Percent of GDP
2004-01-01	10.8584
2005-01-01	10.9119
2006-01-01	11.1165
2007-01-01	11.4312
2008-01-01	11.8334
2009-01-01	13.3001
2010-01-01	13.1518
2011-01-01	13.1194
2012-01-01	13.4925
2013-01-01	13.5208
2014-01-01	13.4579
2015-01-01	14.0449
2016-01-01	14.4103
2017-01-01	15.3255