Year Percent of GDP 2004-01-01 7.2383 2005-01-01 7.0384 2006-01-01 7.1590 2007-01-01 8.5073 2008-01-01 7.9556 2009-01-01 8.2395 2010-01-01 6.7255 2011-01-01 5.5364 2012-01-01 5.1553 2013-01-01 6.2181 2014-01-01 6.0012 2015-01-01 5.2842