Year Percent of GDP 2004-01-01 437.52116656443000 2005-01-01 428.20240549223600 2006-01-01 375.57175489652300 2007-01-01 309.46806816911400 2008-01-01 176.27626237262500 2009-01-01 95.52213286655160 2010-01-01 6.90656556094859 2011-01-01 6.86012514287287 2012-01-01 6.61588564765303 2013-01-01 7.49706569241016 2014-01-01 11.47304393463970 2015-01-01 16.36389872499970 2016-01-01 20.06671440202610 2017-01-01 24.66122764448070 2018-01-01 29.63452830942730 2019-01-01 34.09616540490990