Year Percent of GDP 2004-01-01 7.6279 2005-01-01 8.0544 2006-01-01 6.2686 2007-01-01 5.7506 2008-01-01 4.6469 2009-01-01 5.3113 2010-01-01 6.4762 2011-01-01 6.1315 2012-01-01 6.6302 2013-01-01 7.1734 2014-01-01 7.3934 2015-01-01 8.8352 2016-01-01 10.5859