Year	Percent of GDP
2004-01-01	10.7100
2005-01-01	14.8480
2006-01-01	17.0122
2007-01-01	21.7007
2008-01-01	24.9566
2009-01-01	26.5637
2010-01-01	25.7305
2011-01-01	23.7311
2012-01-01	23.1313
2013-01-01	23.0509
2014-01-01	22.2899
2015-01-01	20.7595
2016-01-01	20.2408
2017-01-01	21.4466