Year	% of total merchandise imports
1960	0.008446659346228565
1962	0.04181116410699773
1963	0.0266140365362523
1964	0.06728681500694295
1965	0.08073389804452408
1966	0.03263240025335795
1967	0.00821561321781145
1968	0.020958119775857997
1969	0.026052141197606356
1970	0.014394754551441454
1971	0.010751677245384506
1972	0.010491630776839775
1973	0.050494068997689275
1974	0.12276068119178218
1975	0.2754979155997254
1976	0.11210971857640087
1977	0.12440290321664739
1978	0.07589571530564261
1979	0.04591988686202642
1980	0.08600560650525692
1981	0.1381693421434161
1982	0.15105406211666492
1983	0.1685774431002614
1984	0.1357463089003767
1985	0.13616590250345484
1986	0.2921519126116457
1987	0.31526143542198
1988	0.32830401707930473
1989	0.3134698201284571
1990	0.18903797497735148
1991	0.1709264462352749
1992	2.157119766557566
1993	2.90011017186793
1994	2.1766577770970024
1995	1.7843630459492288
1996	2.126324039566613
1997	1.844993735661702
1998	1.7562281946742544
1999	1.9804590985506683
2000	2.0592996901013603
2001	2.5414179549657288
2002	2.5610591265527693
2003	2.519622076807102
2004	2.463141411380883
2005	2.600264286423536
2006	2.3261006395677906
2007	2.4441543850156853
2008	2.6954536895845584
2009	2.7998001495877327
2010	2.841872042767345
2011	3.3555250391765252
2012	3.4893705987605497
2013	3.3961981536996135
2014	3.197574445221401
2015	2.8068867907309456
2016	2.5588347447750466
2017	2.7651504186171803
2018	3.224123145726444
2019	3.443823911977353
2020	3.4223550552727384