Year % of GNI 2000 1.25934973493881 2001 0.791433474809117 2002 0.655079136354107 2003 0.53208627250485 2004 0.611889194971339 2005 0.844274535757526 2006 0.893003415874687 2007 0.971029520646978 2008 1.32201783425096 2009 0.751767919059132 2010 0.581538339036547 2011 0.718355969502699 2012 0.82417267100568 2013 0.731733642840825 2014 0.785908942645014 2015 0.465476776252943 2016 0.314829889466987 2017 0.519486628619975 2018 0.798768778762908 2019 0.733624881780431 2020 0.374756824367254 2021 0.751175020158322