Year Percent of GDP 2005-01-01 111.6286 2006-01-01 118.1920 2007-01-01 134.9271 2008-01-01 164.4441 2009-01-01 172.5207 2010-01-01 178.4845 2011-01-01 183.4798 2012-01-01 185.4970 2013-01-01 187.4874 2014-01-01 183.2245 2015-01-01 181.1089 2016-01-01 167.6763 2017-01-01 216.7231