Year	Percent of GDP
2004-01-01	31.7301
2005-01-01	33.8813
2006-01-01	35.0454
2007-01-01	34.4308
2008-01-01	27.3185
2009-01-01	26.1325
2010-01-01	22.0101
2011-01-01	20.3327
2012-01-01	17.2888
2013-01-01	18.1537
2014-01-01	19.3769
2015-01-01	21.5312
2016-01-01	22.7708