Year	% of total merchandise imports
1968	3.4090909090909087
1970	3.6764705882352944
1971	0.9803921568627451
1973	1.639344262295082
1974	0.09048094100178641
1975	0.0026494979201441326
1976	1.3593256059009482
1977	2.28733784869705
1978	0.03488897098058531
1979	0.16409044665419578
1980	0.40708768741481144
1982	1.3494126063959742
1983	0.018296458255957482
1984	0.0022451583783113433
1985	0.9380235478348666
1986	0.0020553356793704485
1987	0.027713408654530876
1988	0.01368164781167584
1989	0.0015954172012582818
1990	3.4497193131523156
1991	5.814723978224777
1992	0.24774795232084282
1993	0.09861942909795157
1994	0.03201670880525905
1995	0.04147524838670536
1996	0.0729519745787435
1997	0.10815600626879666
1998	0.19973855173251132
1999	0.1210221239170604
2000	0.9219405877502718
2001	1.2543981901857104
2002	1.250673772666346
2003	3.780625648091281
2004	0.26516831639038674
2005	0.48701012147756084
2006	0.7308469951929001
2007	4.494652826875423
2008	4.610844553396423
2009	2.918033944529385
2010	3.651396525343968
2011	3.690800381800425
2012	6.060278564269893
2013	5.228007711452294
2014	5.069503344047479
2015	3.7145095765044114
2016	4.075059137881957
2017	3.26125553566134
2018	2.7519440651681277
2019	4.938570502193884
2020	4.988292346893952