Year Percent of GDP 2005-01-01 33.6265 2006-01-01 25.6805 2007-01-01 22.9592 2008-01-01 21.7062 2009-01-01 18.7768 2010-01-01 15.7780 2011-01-01 14.0070 2012-01-01 13.0719 2013-01-01 13.5549 2014-01-01 12.7541 2015-01-01 10.7864 2016-01-01 10.9215