Year	Percent of GDP
2004-01-01	8.5126
2005-01-01	12.4811
2006-01-01	17.7539
2007-01-01	24.2340
2008-01-01	26.0768
2009-01-01	24.4652
2010-01-01	20.1461
2011-01-01	16.6956
2012-01-01	15.5596
2013-01-01	17.3845
2014-01-01	18.4410
2015-01-01	20.5093
2016-01-01	21.5249