Year % of GNI 2005 15.9093908979056 2006 14.9194259309249 2007 11.8074449186865 2008 5.90093310930161 2009 1.46757103622629 2010 3.41787207335938 2011 2.05109281797725 2012 1.86695739937203 2013 6.88266315895892 2014 10.5945166623398 2015 10.9357345425925 2016 11.439708213388 2017 11.7814822076801 2018 11.4519644727788 2019 12.9217778998316 2020 10.6924543209947 2021 16.6922170272926