Year	% of total merchandise exports
1969	0.0035433852084927856
1970	0.008221723437667004
1971	0.003763477955427876
1972	0.0022931177802619886
1973	0.7232403304460131
1974	0.07747076400929649
1975	4.015433486018454
1977	0.0007752478855113921
1981	0.1554587616772429
1982	4.7348803690235375
1983	4.821884096369908
1984	0.3003074400938739
1985	0.340303600104973
1986	0.05299036121984628
1987	0.0816959588350734
1988	0.4297961033525923
1989	0.5717369831261637
1990	0.7343484350690745
1991	1.7638165948463524
1992	2.608548445790316
1993	2.0569807905649125
1994	0.6203852492019211
1995	0.0986832668751255
1996	1.0098105996939164
1997	0.6273413361687286
1998	1.9207192480588478
1999	0.07380073800738007
2000	0.039245957520211816
2001	0.00013895502710886126
2002	3.518406499622695E-05
2003	0.002443512856922865
2004	0.0005487207320189252
2005	9.624083295038552E-06
2006	6.231672450285087E-05
2007	0.057685388087624176
2008	0.1295918202168881
2009	0.10446315398216592
2010	0.4713026992240546
2011	2.3192777616667613
2012	0.7121430349338655
2013	0.30844100676738156
2014	1.2153299198845204
2015	0.7032708463436008
2016	0.847384269737447
2017	0.17298752307442827
2018	0.5227333896839704
2019	1.4920388067327819
2020	1.0421465094762268