Year % of GDP 2000 7.5153451 2001 6.65322924 2002 6.68114853 2003 6.65392351 2004 6.58027744 2005 6.12521315 2006 5.77074099 2007 5.41753864 2008 5.06897497 2009 4.92694378 2010 4.99181557 2011 5.3021183 2012 5.17354631 2013 5.10299349 2014 5.23849726 2015 4.60089922 2016 4.65263557 2017 5.26807451 2018 4.90318584 2019 5.18044472 2020 5.86521959 2021 6.33513117