Year	% of total merchandise exports
1960	1.8726591760299627
1961	0.40816326530612246
1962	0.5217391304347827
1963	0.8156606851549755
1964	1.048951048951049
1965	1.167883211678832
1966	0.639386189258312
1967	0.3658536585365854
1969	0.011359177182510997
1970	0.0037500937523438083
1972	0.011211348874754284
1973	0.043620882188721385
1974	0.06123969342273066
1975	0.0033257063800351196
1976	0.4288269647659024
1977	0.33316271364059014
1978	0.575755440463188
1979	0.4535447814748817
1980	0.5951304426459285
1981	0.24575354937832533
1982	0.34678001797301844
1983	0.2354240712669391
1984	0.2357777960190229
1985	0.315327522567661
1986	0.605355158621334
1987	0.6675592218224671
1988	0.47042467480190603
1989	0.3923902508538411
1990	0.2931624974368178
1991	0.40127364979881647
1992	0.48217413980369117
1993	0.6133355594814252
1994	0.7435071462280386
1995	0.6380310250658644
1996	0.37816541790114044
1997	0.5637139448057458
1998	0.47656263827797335
1999	0.7800338831558274
2000	1.7103304612913164
2001	2.017955130826095
2002	2.12356375365375
2003	1.9874463923444916
2004	1.4208751769987693
2005	1.7857375231173402
2006	1.7451895475857584
2007	1.8124089314622993
2008	1.9321720930986757
2009	2.9191547760990613
2010	3.443067146891309
2011	3.1313429696257638
2012	3.694666103431844
2013	3.748127657770538
2014	13.689572795472781
2015	10.351409320531221
2016	6.597266785182515
2017	8.35271672786102
2018	5.5407334108281825
2019	5.243345776165512
2020	11.97548727463857