Year	% of merchandise exports
1971	3.6500978714526586
1972	10.385323364889318
1973	13.358972941895006
1974	27.880198250091155
1975	34.43960198000188
1976	34.466506660227616
1977	41.681548714362826
1978	39.78249926983105
1979	55.0336243538615
1980	44.37915875708596
1981	37.83049537363311
1982	0.0907023570918278
1983	0.8553627003555041
1984	0.0010457664906029988
1985	0.0029420260396050197
2012	6.320066191455022
2015	0.04766637711178867
2016	0.188436539399564
2017	0.15135197373295523
2018	0.054280592298720017
2019	0.010546890955433534
2020	0.04205512078938415
2021	0.02382604763973172
2022	0.02476825692556733