Year Percent of GDP 2004-01-01 1.0677 2005-01-01 0.7432 2006-01-01 0.6864 2007-01-01 3.2671 2008-01-01 1.4498 2009-01-01 1.4437 2010-01-01 1.7367 2011-01-01 2.3301 2012-01-01 1.9128 2013-01-01 1.8849 2014-01-01 1.9387 2015-01-01 2.6256 2016-01-01 2.6989 2017-01-01 2.7566