Year	Percent of GDP
2004-01-01	42.8134
2005-01-01	45.4887
2006-01-01	48.4267
2007-01-01	51.9410
2008-01-01	48.1144
2009-01-01	50.5424
2010-01-01	54.8343
2011-01-01	59.8941
2012-01-01	63.3206
2013-01-01	64.2406
2014-01-01	63.4954
2015-01-01	62.9632
2016-01-01	62.9819