Year Percent of GDP 2004-01-01 66.7007 2005-01-01 68.6882 2006-01-01 68.5500 2007-01-01 66.4870 2008-01-01 70.1506 2009-01-01 80.3756 2010-01-01 82.9640 2011-01-01 76.0417