Year Percent of GDP 2004-01-01 28.17299688702550 2005-01-01 17.16377514691560 2006-01-01 18.72521878649580 2007-01-01 34.63399357871510 2008-01-01 21.36649073012020 2009-01-01 18.64526921171990 2010-01-01 -3.68055840366633