Year Percent of GDP 2004-01-01 7.0954 2005-01-01 7.2907 2006-01-01 7.3322 2007-01-01 6.9217 2008-01-01 7.5498 2009-01-01 8.4806 2010-01-01 8.8030 2011-01-01 8.2602 2012-01-01 8.1045 2013-01-01 7.8758 2014-01-01 7.5150 2015-01-01 5.9856 2016-01-01 6.0801 2017-01-01 6.4450