Year Percent of GDP 2004-01-01 4.9217 2005-01-01 9.7313 2006-01-01 11.1997 2007-01-01 12.1345 2008-01-01 11.6114 2009-01-01 11.1668 2010-01-01 10.3007 2011-01-01 8.8435 2012-01-01 8.0566 2013-01-01 8.2415 2014-01-01 9.4877 2015-01-01 9.4654 2016-01-01 11.4081