Year	Percent of GDP
2004-01-01	22.9580
2005-01-01	25.0036
2006-01-01	26.4457
2007-01-01	27.4338
2008-01-01	24.9961
2009-01-01	27.3176
2010-01-01	32.1034
2011-01-01	32.3743
2012-01-01	32.2083
2013-01-01	31.6122
2014-01-01	30.7232
2015-01-01	31.0208
2016-01-01	30.6182