Year	Percent of GDP
2004-01-01	35.7421
2005-01-01	37.5687
2006-01-01	40.5574
2007-01-01	42.1641
2008-01-01	47.2706
2009-01-01	47.3624
2010-01-01	47.8110
2011-01-01	49.6602
2012-01-01	52.9668
2013-01-01	54.0041
2014-01-01	56.4656
2015-01-01	60.3082
2016-01-01	61.1923