Year	% of total merchandise imports
1960	0.06165228113440197
1961	0.013683634373289547
1966	8.140657537190595E-05
1968	0.007880123238946967
1969	6.676021998827691E-05
1970	0.535610878102296
1971	7.395845580670763
1972	5.383123222583712
1973	1.455187606915972
1974	10.91350001931878
1975	9.903210762646339
1976	10.370158685316447
1977	13.475498824682427
1978	12.23385385786901
1979	11.784640855194938
1980	0.04592589979925601
1981	1.7216021007835676
1982	2.735852787530289
1983	9.983543002439923
1984	2.092204814751473
1985	0.5206453340297844
1986	2.0794881654584185
1987	1.1635656759087545
1988	1.6970189380808403
1989	0.9859509221573457
1990	0.32964443473936306
1991	0.9422626431485189
1992	2.0496679588485116
1993	0.1310256893457994
1994	0.059784965898697744
1995	0.01016831954691545
1996	0.09582953770382445
1997	0.03173672441163095
1998	0.018840628340651717
1999	0.07202155486272435
2000	0.07542328416961504
2001	0.026234699804854218
2002	0.0923849486534654
2003	0.3118735438131252
2004	0.23219150318196058
2005	0.20715825351004988
2006	0.04670513851099632
2007	0.035360852611177024
2008	0.04822395358280002
2009	0.032283812184683076
2010	0.039554897331575786
2011	0.04571066098407855
2012	0.02887839981382024
2013	0.04881438742650344
2014	0.14750146543287732
2015	0.03010704832224637
2016	0.01687928415491349
2017	0.02887119402520576
2018	0.06122057379159798
2019	3.9701463454808206
2020	1.3416377469957197