Year Percent of GDP 2005-01-01 11.5716 2006-01-01 12.9154 2007-01-01 12.0864 2008-01-01 11.6528 2009-01-01 14.7580 2010-01-01 15.1233 2011-01-01 16.0249 2012-01-01 18.2048 2013-01-01 20.1908