Year % of total merchandise exports 2010 90.11075660765447 2011 88.91909901582954 2012 87.28180635128956 2013 29.25003021814679 2014 52.34637008264214 2015 69.81151859072779 2016 16.01440521290613 2017 44.04868897750197 2018 38.39299983618445 2019 32.87191995878015 2020 37.20203802512936