Year Percent of GDP 2004-01-01 46.3663203536463 2005-01-01 49.8886398931174 2006-01-01 52.3308459860153 2007-01-01 47.1623099159908 2008-01-01 47.0863917504232 2009-01-01 50.8279422853048 2010-01-01 50.6068434643427 2011-01-01 53.1823867655499 2012-01-01 48.9284636399458 2013-01-01 41.5310478296775 2014-01-01 39.2746496046899 2015-01-01 37.7179763960093 2016-01-01 32.4207623083159 2017-01-01 31.0809905350486 2018-01-01 32.2508449052478 2019-01-01 32.4164480067406