Year Percent of GDP 2007-01-01 89.2144 2008-01-01 84.2655 2009-01-01 97.4976 2010-01-01 111.4417 2011-01-01 97.1778 2012-01-01 97.6690 2013-01-01 106.9319 2014-01-01 113.7616 2015-01-01 123.9463 2016-01-01 136.6040 2017-01-01 157.0447