Year Percent of GDP 2004-01-01 5.9477 2005-01-01 8.0324 2006-01-01 7.6492 2007-01-01 9.6631 2008-01-01 10.1751 2009-01-01 9.5657 2010-01-01 8.9412 2011-01-01 8.0024 2012-01-01 8.6646 2013-01-01 9.0419 2014-01-01 8.4720 2015-01-01 9.8947 2016-01-01 8.3649