Year	Percent of GDP
2004-01-01	12.7634
2005-01-01	17.1024
2006-01-01	19.5838
2007-01-01	25.2619
2008-01-01	30.4781
2009-01-01	31.6746
2010-01-01	33.1398
2011-01-01	35.4987
2012-01-01	34.9989
2013-01-01	33.9011
2014-01-01	33.7031
2015-01-01	34.6711
2016-01-01	37.2599