Year Percent of GDP 2004-01-01 25.1359163990408 2005-01-01 21.9786766481468 2006-01-01 21.2257694489949 2007-01-01 25.6014963571451 2008-01-01 23.8724465490758 2009-01-01 22.0977940118421 2010-01-01 20.5179560776667 2011-01-01 18.2147132369990 2012-01-01 13.7626440690794 2013-01-01 13.1704849683094 2014-01-01 24.7074564495976 2015-01-01 23.6398141389085 2016-01-01 21.6652386952469 2017-01-01 19.7149012842289 2018-01-01 21.0330874608661 2019-01-01 22.0425473887144