Year Percent of GDP 2005-01-01 47.2079 2006-01-01 63.1655 2007-01-01 55.4185 2008-01-01 46.6953 2009-01-01 50.1922 2010-01-01 37.9076 2011-01-01 35.4127 2012-01-01 33.5400 2013-01-01 31.2402 2014-01-01 34.1052 2015-01-01 33.0819 2016-01-01 33.4781 2017-01-01 31.5513 2018-01-01 31.7648 2019-01-01 31.6595