Year	% of total merchandise imports
1960	0.787878787878788
1961	1.0723860589812333
1962	0.2918287937743191
1963	0.5031446540880503
1964	0.5475701574264202
1965	0.7504690431519699
1966	0.9888751545117428
1967	2.1908573836107013
1968	1.6396002498438473
1969	1.4653641207815276
1970	1.40591204037491
1971	1.4831717056474614
1972	1.4552417424605075
1973	1.1144001393000176
1974	1.5853481974808168
1975	1.0894721987016651
1976	0.8468244084682441
1977	1.2030671602326812
1978	2.3580292526025253
1979	1.9487488467549094
1980	2.066115702479339
1981	3.3740172041471297
1982	4.070118218142633
1983	3.7591539144946355
1984	3.2400303740975587
1985	2.4224603070999504
1986	3.5828553105070013
1987	3.315574468438129
1988	4.8053696861846005
1989	4.887168068064741
1990	5.210049132482532
1991	6.4442481214202765
1992	5.342180132072893
1993	5.103994908374877
1994	4.669271050953461
1995	5.1356829219096145
1996	4.972309114035123
1997	3.7767757739786014
1998	1.6028296278421208
1999	4.135316104186385
2000	2.597932448026265
2001	2.193813596267235
2002	2.75118506098619
2003	3.473988993937133
2004	7.017607702385116
2005	7.790922099594304
2006	7.069868959694476
2007	6.2088176856101045
2008	7.205500908534517
2009	12.299231221768327
2010	10.803195358315223
2011	12.260021783969682
2012	12.371511514947994
2013	13.730887724140342
2014	13.970760911815528
2015	14.695130358454625
2016	12.682694419401736
2017	13.967674685206664
2018	15.853461341905339
2019	16.387470827264515
2020	17.348519850341777