Year Percent of GDP 2007-01-01 1.2073 2008-01-01 1.5998 2009-01-01 1.6156 2010-01-01 1.9583 2011-01-01 2.3188 2012-01-01 2.1774 2013-01-01 2.4778 2014-01-01 2.4058