Year Percent of GDP 2000-01-01 11.6077 2001-01-01 13.7704 2002-01-01 15.6627 2003-01-01 14.8332 2004-01-01 14.1130 2005-01-01 12.9209 2006-01-01 12.8175 2007-01-01 18.7866 2008-01-01 15.5773 2009-01-01 15.0711 2010-01-01 11.7485 2011-01-01 10.6788 2012-01-01 9.7711 2013-01-01 8.9271 2014-01-01 8.5753 2015-01-01 8.4229 2016-01-01 7.7034 2017-01-01 6.9398 2018-01-01 6.4544 2019-01-01 6.1823