Year	% of total merchandise imports
1961	2.9535864978902953
1962	1.0309278350515463
1963	0.36014405762304924
1964	0.5753739930955121
1965	0.2944062806673209
1966	0.3734827264239029
1967	0.26223776223776224
1968	0.41265474552957354
1971	1.5664023868988752
1972	1.6293465165551908
1973	1.4020453890010427
1974	1.0836140852192218
1975	1.3858403511915427
1976	0.9178345699367959
1977	1.2206177080219722
1978	0.9812644256186092
1979	1.0403919146241496
1980	1.0005837711617047
1981	1.1001549514016058
1982	2.384894803837357
1983	1.028600039959655
1984	0.9358846547415667
1985	1.7093939974961372
1986	0.935884654594842
1987	1.020756220472514
1988	1.0291883213950765
1989	0.9450833963139502
1990	1.4953699764336794
1991	1.0282315446924093
1992	0.9224695183985224
1993	1.1753932082093892
1994	4.7105386059527
1995	1.0815870570918829
1996	1.0497239993727887
1997	18.082473630470215
1998	23.248236776986218
1999	42.51670488465473
2000	6.03073869377421
2001	8.11780271979234
2002	3.6062658152399605
2003	7.653121314312099
2004	0.6529247373709357
2005	1.2230741512509857
2006	1.8775104828234235
2007	1.5409961666635372
2008	6.310258460968525
2009	9.295304521477576
2010	11.928032856535012
2011	17.73574321140479
2012	12.862468436056515
2013	13.174974451964664
2014	15.071685548929887
2015	15.011991441500738
2016	12.507981362223678
2017	8.988266135964848
2018	12.141407553122383
2019	19.678841003839402
2020	6.325738981666838