Year % of total merchandise exports 2007 0.017687117443451892 2013 0.00756571690070093 2014 0.35438293138957283 2015 0.3342467250235563 2016 0.6846674947854754 2017 1.6668550791635293 2018 0.9273007153076203 2019 1.0052037357427483 2020 0.8758294739251725