Year	Percent of GDP
2004-01-01	45.7851
2005-01-01	50.0125
2006-01-01	51.8363
2007-01-01	56.0383
2008-01-01	54.7660
2009-01-01	59.2070
2010-01-01	56.9467
2011-01-01	55.2340
2012-01-01	56.3098
2013-01-01	55.8538
2014-01-01	56.5317
2015-01-01	56.8029
2016-01-01	58.4599
2017-01-01	60.9332