Year Percent of GDP 2004-01-01 12.0587859155909 2005-01-01 12.3243561457231 2006-01-01 12.4140682116861 2007-01-01 12.4929935033286 2008-01-01 11.6700572881673 2009-01-01 10.7978722728490 2010-01-01 10.6492124413420 2011-01-01 12.7525791355833 2012-01-01 11.6206934179647 2013-01-01 11.6300340032570 2014-01-01 12.3203383142672 2015-01-01 13.4517405901319 2016-01-01 13.9030571498684 2017-01-01 14.2083147453275 2018-01-01 14.4495329529002 2019-01-01 14.8970556461679