Year	% of total merchandise imports
1962	1.6034985422740524
1963	1.3924050632911391
1964	2.4801587301587302
1966	2.3154848046309695
1967	2.3547381149366764
1968	2.8087967183226983
1969	2.357663248785753
1970	2.342567025919658
1971	2.048972589386673
1972	4.10600123736853
1973	2.4362509965887256
1974	3.1628423661582152
1975	2.9531774208173203
1976	2.466682029419672
1977	1.5469012700716414
1978	1.761911717078065
1979	1.3216347973578688
1981	4.441561937664144
1982	3.3368826369367985
1983	1.3216347973931575
1984	12.915545257639321
1985	10.47023290675054
1986	4.943287017325317
1987	4.578869916226148
1988	4.6358311015752225
1989	4.680762759879994
1990	4.947306884690179
1991	2.022324882425612
1992	1.788627564747618
1993	2.0550417672919137
1994	5.054601332948637
1995	4.131020814307234
1996	3.0496010875651915
1997	1.0211777697040525
1998	2.433105029620252
1999	1.6361897319252354
2000	0.6871465529739264
2001	1.2597948199390778
2002	0.6703064656322257
2003	0.7522637533299212
2004	0.7596995955153683
2005	1.1836617432177212
2006	0.7857665571249995
2007	0.9323571677257515
2008	0.9001484010172314
2009	1.4354656889687032
2010	1.0928408358773198
2011	0.9911666500272099
2012	1.217612257222839
2013	1.5354510807050448
2014	1.5897411814914348
2015	4.143854238288348
2016	2.5211611044602167
2017	2.804266203355488
2018	4.807336136151172
2019	4.863624822668668
2020	8.095009075338485