Year Percent of GDP 2000-01-01 10.3616 2001-01-01 9.8663 2002-01-01 10.5406 2003-01-01 12.5435 2004-01-01 16.5117 2005-01-01 19.7497 2006-01-01 18.8236 2007-01-01 19.5833 2008-01-01 19.7273 2009-01-01 18.2955 2010-01-01 17.1716 2011-01-01 16.4922 2012-01-01 12.2965 2013-01-01 13.0374 2014-01-01 12.1042 2015-01-01 11.7148 2016-01-01 10.2913 2017-01-01 9.9242 2018-01-01 11.1616 2019-01-01 9.4095