Year	% of total merchandise imports
1963	6.516368128474367
1964	9.30232558139535
1966	7.9939341421143855
1967	8.27156334231806
1968	10.49795918367347
1969	8.881324462323999
1970	9.663933108216755
1971	9.40959409594096
1972	10.095309756709305
1973	8.757752302198835
1974	6.883475801786747
1975	4.296662339293941
1976	2.746525479814692
1977	2.5275678354602897
1978	3.5687909987401714
1979	3.229902083373411
1980	2.6157896347996448
1981	2.549055826311826
1982	2.420182268091013
1983	3.2603683510998995
1984	3.164208513227666
1985	3.4151976027889184
1986	3.5249546186536502
1987	5.185469473282205
1988	5.877784069229152
1989	5.3922722361666775
1990	0.3210669301061991
1991	0.4641035925055864
1992	0.557920403355788
1993	2.454641664131502
1994	4.189873927063212
1995	3.593293860958391
1996	3.5031778450824134
1997	3.4010679475117103
1998	3.6252864761060684
1999	4.240744255619195
2000	4.52960826239948
2001	4.347403323785561
2002	4.489779786102064
2003	4.16745616365586
2004	4.369017920334169
2005	4.879332989129215
2006	5.347471872906624
2007	4.210523493008749
2008	3.7638646977189265
2009	2.9772061935701233
2010	2.9797997345048155
2011	2.8301076753848697
2012	2.8090547266365102
2013	2.93334089510424
2014	3.2006437295954524
2015	3.4749681436954916
2016	3.183417267010802
2017	3.1191493169128757
2018	3.1060131181053983
2019	3.339755920818415
2020	3.662199205657081