Year	% of total merchandise imports
1960	0.9838870668758021
1961	1.4023031203566123
1962	1.6486347243688821
1963	2.0759101471727344
1964	2.663513875256536
1965	2.2759791035836687
1966	2.6078485944892846
1967	2.1537489590213363
1968	2.630012616086507
1969	4.288075437970098
1970	3.822200692916039
1971	4.238622951083826
1972	4.688555222870427
1973	3.9522992257017795
1974	3.058187689092596
1975	3.9942984352728264
1976	3.611449476302315
1977	4.129485688524241
1978	3.5679493229035018
1979	3.258416409467751
1980	4.1109586436157715
1981	4.723420070880848
1982	3.6011894548056747
1983	4.051579949366811
1984	6.11498839128212
1985	8.661620198599133
1986	4.540151190985594
1987	4.126650226342937
1988	3.7528745040391316
1989	3.7648716210460376
1990	3.499552217247547
1991	3.4030632655215403
1992	3.3279690252985965
1993	2.742064768214893
1994	3.1760241633194686
1995	2.8644346507074796
1996	3.186881083487513
1997	2.969407747854806
1998	2.4855302982069594
1999	2.349166265631131
2000	3.293241573156327
2001	3.0391085301310836
2002	2.7126047708767507
2003	2.815236540828397
2004	2.6705876225129677
2005	3.1684282704239024
2006	3.3004170361201757
2007	3.0548919195107618
2008	4.095274403041214
2009	2.982728116707261
2010	3.553212011978942
2011	4.3426712686101165
2012	4.779548324725477
2013	4.645698561153192
2014	4.780937604915566
2015	3.7404703018428673
2016	2.6334171619157276
2017	2.9624846406482166
2018	3.3484922652485394
2019	3.267892332394366
2020	2.8010365702136037