Year	Percent of GDP
2004-01-01	44.8948
2005-01-01	46.3437
2006-01-01	47.1968
2007-01-01	47.8586
2008-01-01	48.2225
2009-01-01	51.8292
2010-01-01	51.6756
2011-01-01	54.3179
2012-01-01	55.5118
2013-01-01	56.3278
2014-01-01	57.8734
2015-01-01	59.1496
2016-01-01	61.8127