Year	Percent of GDP
2004-01-01	21.5679
2005-01-01	25.0056
2006-01-01	28.2355
2007-01-01	32.0527
2008-01-01	32.5755
2009-01-01	33.4303
2010-01-01	31.4881
2011-01-01	30.4325
2012-01-01	28.4139
2013-01-01	28.1270
2014-01-01	27.7979
2015-01-01	26.0041
2016-01-01	25.4230
2017-01-01	24.3657