Year Percent of GDP 2004-01-01 0.0410 2005-01-01 0.0444 2006-01-01 0.0394 2007-01-01 0.0352 2008-01-01 0.0342 2009-01-01 0.0486 2010-01-01 0.0632 2011-01-01 0.0618 2012-01-01 0.0641 2013-01-01 0.0666 2014-01-01 0.0687 2015-01-01 0.0750 2016-01-01 0.0759