Year Percent of GDP 2004-01-01 0.2024 2005-01-01 0.2330 2006-01-01 0.2999 2007-01-01 0.4634 2008-01-01 0.7051 2009-01-01 0.5427 2010-01-01 0.4282 2011-01-01 0.5622 2012-01-01 0.7681 2013-01-01 1.0768 2014-01-01 1.3271 2015-01-01 1.5921 2016-01-01 1.4046