Year Percent of GDP 2004-01-01 3.0279 2005-01-01 2.4524 2006-01-01 3.6390 2007-01-01 4.5785 2008-01-01 6.1686 2009-01-01 7.2299 2010-01-01 7.7543 2011-01-01 8.2599 2012-01-01 9.6090 2013-01-01 10.2045 2014-01-01 9.9118