Year Percent of GDP 2004-01-01 0.9740 2005-01-01 1.1372 2006-01-01 1.6682 2007-01-01 2.3156 2008-01-01 5.1563 2009-01-01 4.9126 2010-01-01 3.4962 2011-01-01 4.3117 2012-01-01 5.1896 2013-01-01 5.9389 2014-01-01 5.8336