Year	Percent of GDP
2004-01-01	24.9530
2005-01-01	23.5245
2006-01-01	22.3964
2007-01-01	23.5617
2008-01-01	23.6700
2009-01-01	30.9507
2010-01-01	27.2416
2011-01-01	25.5320
2012-01-01	26.4403
2013-01-01	30.9575
2014-01-01	37.7140
2015-01-01	43.8502
2016-01-01	46.2937