Year	Percent of GDP
2004-01-01	15.9254
2005-01-01	15.2804
2006-01-01	14.4380
2007-01-01	16.7648
2008-01-01	16.9532
2009-01-01	17.3283
2010-01-01	17.8984
2011-01-01	18.6046
2012-01-01	18.0790
2013-01-01	19.8471
2014-01-01	20.8515
2015-01-01	25.2003
2016-01-01	25.6592