Year	Percent of GDP
2004-01-01	9.3319
2005-01-01	10.5385
2006-01-01	14.2783
2007-01-01	17.3384
2008-01-01	17.4982
2009-01-01	19.6495
2010-01-01	23.2653
2011-01-01	23.2451
2012-01-01	24.2811
2013-01-01	29.5634
2014-01-01	31.7225
2015-01-01	35.7795
2016-01-01	40.2752