Year	Percent of GDP
2004-01-01	29.3049
2005-01-01	31.7468
2006-01-01	36.7719
2007-01-01	43.0104
2008-01-01	43.6051
2009-01-01	45.3124
2010-01-01	48.7702
2011-01-01	50.4456
2012-01-01	52.5758
2013-01-01	51.6644
2014-01-01	54.3901
2015-01-01	54.8491
2016-01-01	53.1394