Year	Percent of GDP
2004-01-01	45.5426
2005-01-01	46.7194
2006-01-01	47.7207
2007-01-01	50.3646
2008-01-01	52.4720
2009-01-01	55.4883
2010-01-01	57.9358
2011-01-01	59.5591
2012-01-01	60.7196
2013-01-01	61.0651
2014-01-01	61.7341
2015-01-01	61.5127
2016-01-01	62.5543
