Year	Percent of GDP
2004-01-01	32.1063
2005-01-01	32.1234
2006-01-01	31.6426
2007-01-01	31.4478
2008-01-01	31.8719
2009-01-01	34.0452
2010-01-01	34.9632
2011-01-01	35.8209
2012-01-01	37.5354
2013-01-01	38.5404
2014-01-01	39.2786
2015-01-01	40.0931
2016-01-01	41.4513