Year	% of total merchandise exports
1982	16.216216216216218
1983	35.483870967741936
1984	23.076923076923077
1985	38.775510204081634
1988	9.285301808988098
1989	52.67755412668554
1993	1.0667652589756886
1994	9.159935369821968
1995	4.619593104720856
1996	2.2895259558292644
2005	12.461012320576858
2006	8.524200985419615
2007	6.6191314666173895
2008	2.2319616212101567
2011	0.10984895344153388
2012	13.1167797797448
2013	21.247732191186387
2014	2.6076240644366884
2015	0.038079461351873484
2016	0.5435123958824731
2017	1.235815619267881
2018	0.10477452364054392
2019	0.15894504321806913
2020	0.15415352342132224