Year	% of total merchandise exports
1960	1.9751108467574559
1961	1.582668198003666
1962	1.7138262898031213
1963	1.5077234855889783
1964	2.033822531029562
1965	1.81176979923309
1966	1.7032088450643788
1967	1.4914613571501398
1968	1.4826066753245877
1969	1.0303915439582934
1970	0.9364424969757381
1971	1.0475481425812638
1972	1.300772061893258
1973	1.127946330571709
1974	0.8140149663449311
1975	0.8470367010945742
1976	0.6752151492025085
1977	0.879209448966153
1978	0.9917195687761844
1979	0.9380238138670214
1980	0.9765845905828713
1981	1.7743317773066019
1982	1.5116094806944935
1983	1.502507200399338
1984	1.5992653086316457
1985	1.5249296975029256
1986	1.5063704481286257
1987	1.4204538854277022
1988	1.5298275922154425
1989	1.3178270740385545
1990	1.3944432178225212
1991	1.3263368395104214
1992	1.356750858777759
1993	1.3918345667747622
1994	1.4556572600217155
1995	1.5533012614815522
1996	1.4834347014163898
1997	1.4887738598559896
1998	1.6278881048446676
1999	1.8804066716729402
2000	1.798240793390905
2001	1.6668969094391946
2002	1.8548262874864645
2003	1.983254853518294
2004	2.0145300616506345
2005	2.266874542648563
2006	2.6099358879836627
2007	3.080447269433559
2008	3.4127725070726935
2009	3.63196760597852
2010	3.778337383702255
2011	3.9108215129243664
2012	4.085520999326527
2013	3.962298691603156
2014	4.210376112923065
2015	4.284672143251532
2016	4.388350242348357
2017	4.653478732098443
2018	4.841128125432184
2019	4.515790267173125
2020	3.887395278812552