Year Percent of GDP 2008-01-01 1.7338 2009-01-01 1.7796 2010-01-01 1.7855 2011-01-01 1.6114 2012-01-01 1.4216 2013-01-01 1.7712 2014-01-01 1.9873 2015-01-01 1.9611 2016-01-01 1.8610