Year Percent of GDP 2004-01-01 1.1870 2005-01-01 1.5414 2006-01-01 2.2405 2007-01-01 2.6355 2008-01-01 3.7467 2009-01-01 4.5186 2010-01-01 6.7638 2011-01-01 10.4327 2012-01-01 9.8507 2013-01-01 9.8497 2014-01-01 10.4947 2015-01-01 10.2894 2016-01-01 10.1309