Year Percent of GDP 2008-01-01 6.1888 2009-01-01 6.8234 2010-01-01 6.9697 2011-01-01 6.4382 2012-01-01 6.7151 2013-01-01 7.2668 2014-01-01 6.4607 2015-01-01 5.8695 2016-01-01 5.1937