Year Percent of GDP 2004-01-01 7.8161 2005-01-01 8.3129 2006-01-01 8.5103 2007-01-01 8.6796 2008-01-01 9.2353 2009-01-01 9.2820 2010-01-01 9.6057 2011-01-01 9.3532 2012-01-01 9.0937 2013-01-01 8.9714 2014-01-01 9.1623