Year	% of total merchandise exports
1960	0.41841004184100417
1961	0.543970988213962
1962	2.33362143474503
1963	0.3189792663476874
1965	0.08340283569641367
1969	0.1977204000930449
1970	0.5873715124816447
1971	0.6576526857983812
1972	0.7784604497056647
1973	0.9210742733616861
1974	5.81399116506637
1975	0.2873764631667484
1976	0.8402934680510777
1977	0.6890509053934188
1978	0.5934050101752301
1979	0.03130520337201762
1980	0.3044017386711073
1981	0.0032471354177236768
1982	0.002024004695690894
1983	0.3456448189868216
1984	0.5221652887950676
1985	0.5048987891672059
1986	0.5144687098974531
1987	0.477285607895119
1988	0.02967140796263576
1989	0.35856883027599257
1990	0.36361803591309927
1991	0.33256188956843497
1992	0.5452963028085618
1993	0.42377730606557634
1994	0.5843664092593305
1995	0.6192309011388661
1996	0.768533283759949
1997	1.0837479247020334
1998	0.7451340525027604
1999	0.3892382088725179
2000	0.9243413855110982
2001	0.5684090367703589
2002	0.7114835358588132
2003	0.8451926233680369
2004	0.8290458117809987
2005	0.5364345761319875
2006	0.7686890001115826
2007	0.9095701669719382
2008	1.14224983184727
2009	0.8651064149806209
2010	0.7715328209801272
2011	0.722071710672775
2012	0.7148992790954234
2013	0.8791154792481359
2014	0.3696437232858971
2015	0.3701860870552789
2016	0.36492638035262087
2017	0.31836161171799754
2018	0.2638162308887436
2019	0.3727113146472605
2020	0.2888170276567087