Year	Percent of GDP
2004-01-01	10.8503
2005-01-01	11.7288
2006-01-01	12.6613
2007-01-01	16.0049
2008-01-01	15.7283
2009-01-01	18.9680
2010-01-01	19.4072
2011-01-01	19.8547
2012-01-01	20.4374
2013-01-01	20.2607
2014-01-01	20.5662
2015-01-01	20.5484
2016-01-01	21.3681
2017-01-01	23.3117