Year	% of total merchandise imports
1960	0.06165228113440197
1961	0.027367268746579094
1965	0.041442931478502545
1966	0.04395955070082921
1967	0.007158623158145917
1968	0.0159920148084512
1969	0.2868019050696376
1970	2.324278701492368
1971	4.823721010552306
1972	4.221318544436787
1973	14.018870680253826
1974	7.7144929497435175
1975	8.388118783361463
1976	7.613760334824072
1977	10.179717738228481
1978	8.528103633374112
1979	7.570055653794326
1980	0.5210854110965024
1981	0.03160696537769721
1982	0.8485933518771952
1983	6.255017679971571
1984	14.34314479491285
1985	19.499993928426502
1986	11.354178823248263
1987	8.571786620039664
1988	5.098387861945717
1989	3.417465732100126
1990	0.9737092129643216
1991	0.6044552326763732
1992	0.650032844502302
1993	0.4108145774351498
1994	0.25521670827239845
1995	0.8008367280665822
1996	0.2665878245109609
1997	0.11657425656857222
1998	0.11242499883290101
1999	0.21004305084291724
2000	0.8169535427142386
2001	0.6827795260570347
2002	3.158594161442689
2003	3.477669291393081
2004	2.7196052473853496
2005	3.9678394462977087
2006	4.975818937554322
2007	5.871961415400081
2008	4.408624111205708
2009	3.9550052893976826
2010	4.920025737835573
2011	5.2784253404035075
2012	4.618807878455365
2013	6.771888418888085
2014	7.840094980832081
2015	6.95264351578391
2016	6.241678312356342
2017	5.681674416159776
2018	1.4045502075403704
2019	0.9343165194752873
2020	0.622707249297939