Year % of total merchandise exports 2011 0.5888559772940555 2012 1.2448302615237372 2013 0.05023462219205722 2014 0.1381147146130507 2015 0.034923263351886294 2016 0.006620848531542938 2017 2.5464488244546906E-06 2018 3.6135783821286865E-06 2019 0.005190791009103095 2020 0.8052005552352998