Year % of GNI 2008 0.24955517929483753 2009 0.31043887223331124 2010 0.39991633269848714 2011 0.16592875058370665 2012 0.3551653443107735 2013 0.3667007792950449 2014 0.5868863222605747 2015 0.36916237652739137 2016 0.9533782779003661 2017 0.9925761633349465 2018 1.6188424087636277 2019 1.5407281774363235 2020 1.4930738161040393 2021 1.8316525278766167 2022 1.6286294492484623