Year	% of total merchandise imports
1960	3.4627831715210355
1961	1.3044612575006522
1962	2.6249209361163826
1963	3.62405416168857
1964	0.01530221882172915
1965	0.030349013657056147
1966	0.059441252229046955
1967	0.01568627450980392
1968	0.014128284826222097
1974	2.0693963609860218
1975	1.6207489411666036
1976	0.37012884008671587
1977	4.712210002408285
1978	3.5410002690502527
1979	5.155281222320638
1980	9.022542515202126
1981	5.7206375522815485
1982	7.320212589270886
1983	6.1529523285325505
1984	10.727511130963531
1985	9.510647409195313
1986	6.726653923259826
1987	5.80067520263858
1988	5.3584799353542545
1989	4.349211136442968
1990	3.0862247048176106
1991	3.99520165303155
1992	3.899436931284888
1993	1.9823511995436436
1994	3.424569256885505
1995	3.514741023363831
1996	2.5809147432445165
1997	2.8643794368330204
1998	2.951868393740045
1999	8.345591599962646
2000	8.175402003168156
2001	8.897617039026796
2002	7.529539027276308
2003	8.374400897627853
2004	8.152160268912738
2005	8.177280930408116
2006	9.872453104726766
2007	8.503807907897087
2008	6.722821336890908
2009	5.9347930339577175
2010	5.853025165299308
2011	5.499328242295814
2012	6.583161279350621
2013	6.934499982853591
2014	7.018015204373131
2015	5.08718607389135
2016	4.685647217139822
2017	5.000692546540217
2018	5.260002403120937
2019	4.847577703121415
2020	4.47167150820537