Year Percent of GDP 2004-01-01 24.4733 2005-01-01 42.6124 2006-01-01 47.3602 2007-01-01 60.3083 2008-01-01 64.9165 2009-01-01 61.2173 2010-01-01 55.8261 2011-01-01 49.4894 2012-01-01 41.4082 2013-01-01 37.5953 2014-01-01 34.3831 2015-01-01 33.4212 2016-01-01 35.2168