Year Percent of GDP 2004-01-01 7.6849 2005-01-01 7.1434 2006-01-01 6.5771 2007-01-01 6.3461 2008-01-01 6.1902 2009-01-01 5.3435 2010-01-01 4.9987 2011-01-01 5.1338 2012-01-01 5.1806 2013-01-01 5.6024 2014-01-01 5.4000 2015-01-01 5.3375 2016-01-01 5.2805