Year % of GNI 2011 -4.92322562525856 2012 -2.12553631420475 2013 8.01337006182936 2014 9.28359113078385 2015 12.3491601669796 2016 15.2683373242078 2017 13.7535630589152 2018 10.563615948233 2019 15.2683497249664 2020 7.84563206269497 2021 5.71239143675342