Year Percent of GDP 2004-01-01 29.5838 2005-01-01 32.0574 2006-01-01 32.7889 2007-01-01 42.1466 2008-01-01 28.5402 2009-01-01 38.2581 2010-01-01 43.3722 2011-01-01 43.8136 2012-01-01 38.7140 2013-01-01 39.3614 2014-01-01 38.4620 2015-01-01 36.4676 2016-01-01 48.0011