Year Percent of GDP 2004-01-01 60.3012686046525 2005-01-01 49.3263386785201 2006-01-01 39.5978148598338 2007-01-01 39.2370994394970 2008-01-01 20.0531915144837 2009-01-01 25.9917489860752 2010-01-01 21.2952133955405 2011-01-01 21.4249972687112 2012-01-01 21.4424362492676 2013-01-01 31.1128107286795 2014-01-01 34.0627975463393 2015-01-01 44.7032095841855 2016-01-01 64.1985813132958 2017-01-01 62.6854639051072 2018-01-01 58.3538911958457 2019-01-01 56.9628516088675