Year	Percent of GDP
2004-01-01	156.1702
2005-01-01	159.3408
2006-01-01	159.7975
2007-01-01	174.2495
2008-01-01	187.2451
2009-01-01	193.4952
2010-01-01	234.7587
2011-01-01	259.5333
2012-01-01	270.1862
2013-01-01	298.5689
2014-01-01	318.3451
2015-01-01	311.0408
2016-01-01	319.3096