Year Percent of GDP 2004-01-01 118.9941730611950 2005-01-01 106.3802510127670 2006-01-01 83.0257895740079 2007-01-01 24.5088216620424 2008-01-01 24.2244364739263 2009-01-01 28.2228108340701 2010-01-01 30.3565580398363 2011-01-01 32.4410417573307 2012-01-01 25.7950501930917 2013-01-01 21.2505155615752 2014-01-01 22.5241972037098 2015-01-01 29.3932287832196 2016-01-01 36.1450125840299 2017-01-01 45.8684729645159 2018-01-01 56.7789247122413 2019-01-01 69.4471511085029