Year Percent of GDP 2004-01-01 7.7755 2005-01-01 8.9273 2006-01-01 10.1062 2007-01-01 11.4585 2008-01-01 10.8189 2009-01-01 11.0061 2010-01-01 11.4057 2011-01-01 12.7063 2012-01-01 13.7648 2013-01-01 14.1928 2014-01-01 12.6014 2015-01-01 13.4062 2016-01-01 12.7260 2017-01-01 19.2662