Rwanda Exports of unsaturated acyclic or cyclic monocarboxylic acids, their anhydrides to Liberia was US$42 during 2020, according to the United Nations COMTRADE database on international trade. Rwanda Exports of unsaturated acyclic or cyclic monocarboxylic acids, their anhydrides to Liberia - data, historical chart and statistics - was last updated on May of 2024.