Year Percent of GDP 2004-01-01 54.3473 2005-01-01 56.9778 2006-01-01 55.7604 2007-01-01 53.6496 2008-01-01 52.6885 2009-01-01 58.5588 2010-01-01 60.1332 2011-01-01 58.7167