Year Percent of GDP 2005-01-01 1.1734 2006-01-01 1.3145 2007-01-01 1.3078 2008-01-01 1.2946 2009-01-01 1.3042 2010-01-01 1.3107 2011-01-01 1.3507 2012-01-01 1.4413 2013-01-01 1.4813 2014-01-01 1.5630 2015-01-01 1.6464 2016-01-01 1.7874