Year Percent of GDP 2000-01-01 16.0465 2001-01-01 10.1613 2002-01-01 8.4339 2003-01-01 6.7166 2004-01-01 3.6443 2005-01-01 16.6587 2006-01-01 15.2164 2007-01-01 5.8454 2008-01-01 8.2367 2009-01-01 -1.0400 2010-01-01 8.3255 2011-01-01 13.0229 2012-01-01 10.1949 2013-01-01 6.5894 2014-01-01 5.1947 2015-01-01 -15.9009 2016-01-01 -18.4363 2017-01-01 -11.5212 2018-01-01 -6.2174 2019-01-01 -6.0128