Year % of GNI 2000 5.41775569131588 2001 7.78870670169254 2002 7.22137805732772 2003 8.09348271347138 2004 6.76545062953397 2005 4.04455499224464 2006 2.80242016104953 2007 4.39988197694586 2008 0.693694337444112 2009 2.88105945703667 2010 2.93242945819764 2011 3.39578126190006 2012 3.31648227981888 2013 6.11742343156802 2014 6.09499934814978 2015 6.90418005638548 2016 6.82789602912371 2017 7.33033327640276 2018 5.50179835888873 2019 7.05941136510732 2020 4.91088566932531 2021 3.55998780581436