Year	Percent of GDP
2004-01-01	16.5389
2005-01-01	13.5594
2006-01-01	15.3679
2007-01-01	14.4150
2008-01-01	13.9473
2009-01-01	14.5474
2010-01-01	16.1397
2011-01-01	18.1327
2012-01-01	17.2165
2013-01-01	15.4768
2014-01-01	14.8996
2015-01-01	13.9628
2016-01-01	13.8253