Year % of GNI 2002 13.9694524739058 2003 13.2981722317783 2004 14.5800558060407 2005 14.5126744935869 2006 14.7104961286234 2007 15.6599882285202 2008 13.7867499134844 2009 11.0245850514926 2010 11.3448506595405 2011 9.5505088226234 2012 10.4698573031909 2013 10.0324844931549 2014 10.6666315142892 2015 11.216360439969 2016 11.2796419925307 2017 11.711369600568 2018 10.9535356102354 2019 11.4824759108627 2020 10.4311369854454 2021 12.082006359213