Year	% of total merchandise exports
1960	0.6694560669456067
1961	0.09066183136899365
1962	0.9507346585998271
1963	0.07974481658692185
1964	0.07763975155279502
1965	3.919933277731443
1966	2.0581973030518097
1967	0.46822742474916385
1968	0.3761755485893417
1969	0.029076529425447778
1970	0.021754500462283135
1971	0.42310522442972776
1972	0.16727249332518418
1973	0.09163749148241265
1974	0.0658839793923553
1975	0.0023363940094857597
1976	0.1561270340940824
1977	0.5884516366311144
1978	1.4218308210420156
1979	1.1895977281366696
1980	1.3263858112977809
1981	1.507482617678217
1982	1.2564009148501225
1983	1.1472705881028378
1984	1.7738740665656123
1985	2.4979203253535447
1986	1.922031977987676
1987	1.1747127621206659
1988	4.075848476895585
1989	3.0976636962638437
1990	1.3504208845589984
1991	2.1082914301351825
1992	2.153487041396074
1993	1.4550420777709971
1994	1.9438618840923343
1995	2.0467812864902126
1996	2.4922162475912013
1997	3.005529815591347
1998	2.9114638875544734
1999	2.438076961343334
2000	2.1614996420298054
2001	1.4824196261555298
2002	1.6266773140628836
2003	0.8889225005537954
2004	1.1577287767598772
2005	1.7377461407401897
2006	1.2764842147919282
2007	1.37134018475372
2008	4.09556741035126
2009	1.9362730039208316
2010	2.695629115637731
2011	1.529651186047081
2012	1.7423008129155013
2013	1.4219773882959965
2014	2.0949181222018614
2015	1.65314096695564
2016	1.7934452311170839
2017	1.422618802246678
2018	1.1787066604266534
2019	1.2056178000241626
2020	2.304301305527846