Year	% of total merchandise exports
1960	4.871447902571042
1961	4.920212765957447
1962	2.125
1963	1.557285873192436
1964	1.5252621544327931
1965	0.6920415224913495
1966	1.5370705244122964
1967	1.9801980198019802
1968	2.8544243577545196
1969	2.1443834583315877
1970	1.6051625940079361
1971	2.0012099598802777
1972	1.9702011571784033
1973	0.9136907860489328
1974	0.4697951348270794
1975	0.10375259381484538
1976	0.12247092205651462
1977	0.19109026611422752
1978	0.013067667650008656
1979	0.00023929226918465945
1980	0.010594916323705302
1981	0.02421597591657469
1983	0.059912409048259195
1984	0.0021561120986636896
1987	0.06123632635994551
1988	0.006407974368102527
1993	1.1143055417864578
1994	0.8825129979813877
1995	0.644842881906246
1996	0.20771552629382017
1997	0.28037416116849156
1998	0.09607018560760287
1999	1.1774813284057006
2000	2.5208091031450333
2001	3.0725768335392165
2002	5.508646509329789
2003	1.7761730950598642
2004	2.1516559377357103
2005	1.4563528129178547
2007	2.4893777491664832
2008	2.129468384406664
2009	3.1189965811334384
2010	4.158127699234868
2011	3.0473401116341807
2012	4.397711819765792
2013	3.3756004002033615
2014	3.538656777179716
2015	4.639336974063682
2016	5.3084588668344885
2017	2.7315106655938637
2018	2.8883745364788354
2019	3.7798624685245823
2020	1.7231135507524913