Year % of GDP 1996 0.889119982719421 1997 0.988189995288849 1998 1.06022000312805 1999 1.04956996440887 2000 1.10996997356415 2001 1.09870994091034 2002 1.09818994998932 2003 1.14209997653961 2004 1.13935005664825 2005 1.16100001335144 2006 1.22541999816895 2007 1.29571998119354 2008 1.23357999324799 2009 1.28656005859375 2010 1.32669997215271 2011 1.54477000236511 2012 1.76967000961304 2013 1.87924003601074 2014 1.95833003520966 2015 1.91689002513885 2016 1.67002999782562 2017 1.76855003833771 2018 1.89906001091003 2019 1.92734003067017 2020 1.98599004745483 2021 1.99600994586945