Year Percent of GDP 2004-01-01 6.8885 2005-01-01 5.7450 2006-01-01 6.3296 2007-01-01 5.7987 2008-01-01 6.9902 2009-01-01 6.1701 2010-01-01 6.8259 2011-01-01 6.9804 2012-01-01 6.8887 2013-01-01 7.3058 2014-01-01 7.3681 2015-01-01 6.9570 2016-01-01 0.6340