Year	Percent of GDP
2004-01-01	8.63989471539312
2005-01-01	8.70627189124597
2006-01-01	8.83201055835565
2007-01-01	14.35983488643260
2008-01-01	19.55301178071480
2009-01-01	21.09424826073660
2010-01-01	15.90442931461000
2011-01-01	14.20416077140070
2012-01-01	13.29095487902690
2013-01-01	13.02706744669550
2014-01-01	13.81461367112710
2015-01-01	13.68061314641970
2016-01-01	15.65843011216750
2017-01-01	13.36080438652990