Year Percent of GDP 2003-01-01 7.94 2004-01-01 9.40 2005-01-01 10.46 2006-01-01 9.23 2007-01-01 5.62 2008-01-01 5.88 2009-01-01 3.48 2010-01-01 4.52 2011-01-01 4.89