Year Percent of GDP 2009-01-01 0.3368 2010-01-01 1.1203 2011-01-01 2.4464 2012-01-01 3.4596 2013-01-01 3.6197 2014-01-01 3.6731 2015-01-01 3.8869 2016-01-01 0.6696