Year Percent of GDP 2004-01-01 43.2596 2005-01-01 56.9557 2006-01-01 73.7622 2007-01-01 76.8939 2008-01-01 79.8874 2009-01-01 97.3556 2010-01-01 95.0211 2011-01-01 77.4979 2012-01-01 64.2059 2013-01-01 57.4514 2014-01-01 50.7181 2015-01-01 47.8075 2016-01-01 46.6082