Year % of GDP 2000 4.20017815 2001 4.4598279 2002 4.36780405 2003 4.46871901 2004 4.26406574 2005 4.35741186 2006 4.56696033 2007 4.58606291 2008 4.74562693 2009 5.2679739 2010 5.10725689 2011 4.9838357 2012 4.7128706 2013 4.90206432 2014 5.05892706 2015 5.32889223 2016 5.29663372 2017 5.4549818 2018 5.46089888 2019 5.43606472 2020 6.21218491 2021 6.54606009