Year	% of total merchandise exports
1985	0.03669264983577802
1998	0.15959601609777432
2013	0.04255871899325096
2014	0.00032226365453895953
2015	8.440601583128025E-05
2016	0.015664628688070278
2017	0.0021685815252690047
2018	0.014812784684959421
2019	0.001693591853008492
2020	0.0017694045800933473