Year Percent of GDP 1995-01-01 27.8206345301881 1996-01-01 26.9199812762586 1997-01-01 25.0452680798445 1998-01-01 23.3533441056376 1999-01-01 26.1565595930306 2000-01-01 26.6533667569771 2001-01-01 24.9629973484884 2002-01-01 26.8778968392892 2003-01-01 26.4249448072812 2004-01-01 29.7912813918134 2005-01-01 31.2703070957185 2006-01-01 30.6431980822893 2007-01-01 31.2618363934713 2008-01-01 29.7470653902602 2009-01-01 22.4771961492270 2010-01-01 24.9753092358357 2011-01-01 27.8688633726784 2012-01-01 27.8979925322043 2013-01-01 24.1929890006174 2014-01-01 23.0688844619568 2015-01-01 20.3637550674394 2016-01-01 20.4096105921758 2017-01-01 19.2261698484940