Year Percent of GDP 2004-01-01 243.43770540 2005-01-01 204.03397210 2006-01-01 23.01937010 2007-01-01 20.23990988 2008-01-01 18.36959403 2009-01-01 16.77556436 2010-01-01 7.90155288 2011-01-01 7.13664868 2012-01-01 6.62524929 2013-01-01 6.74872467 2014-01-01 6.38030002 2015-01-01 6.24600667 2016-01-01 6.75092255