Year	% of merchandise exports
1962	3.5048116368503317
1963	1.2324737586342882
1964	1.0105767787579585
1965	1.7616460068199196
1966	1.8352718607009637
1967	2.2462598113658636
1968	1.3026757613930484
1970	0.12148993268345167
1971	2.3864570336764617
1972	1.4040028910540907
1973	1.7064871310327208
1974	0.2782449147625084
1975	1.6983858151832958
1976	1.3731370567946644
1977	5.835591135444792
1978	0.19204765951694264
1979	0.404158799767562
1980	0.23994367166789762
1983	0.0854715310508976
1984	0.10990781916007039
1985	0.11081163668540883
1986	0.10458990355852436
1993	0.055610423107652185
1994	1.0871533621194969
1995	0.3250818430926456
2007	0.03648302910436844
2008	0.028294524301954085
2009	0.018679259694297623
2010	0.021008805979755466
2011	0.01935549212669079
2012	0.014074300885609192
2013	0.0146800156868154
2014	0.013686131935987335
2015	0.012040484362073764
2016	0.018484360714291204
2017	2.2875549458686155
2018	0.9274247425611318
2019	1.5591221897718626
2020	0.831440752613757
2021	4.640295124908449