Year Percent of GDP 2009-01-01 43.3865 2010-01-01 39.8199 2011-01-01 26.7512 2012-01-01 27.7371 2013-01-01 29.2284 2014-01-01 31.0974 2015-01-01 38.1789 2016-01-01 39.9964