Year Percent of GDP 2008-01-01 3.2480 2009-01-01 3.4508 2010-01-01 2.8454 2011-01-01 3.5958 2012-01-01 3.5364 2013-01-01 5.0645 2014-01-01 5.7165 2015-01-01 5.4902 2016-01-01 8.2893