Year	% of total merchandise exports
1961	14.439140811455847
1962	9.67354692835748
1963	14.596273291925465
1964	16.777251184834125
1965	14.631873252562908
1966	13.60787824529991
1967	12.018853102906519
1969	0.0007086770416985572
1971	0.020699128754853316
1972	6.1925645655975
1973	3.08401434011
1974	5.848204254519966
1975	5.124462782370676
1977	2.4342783605057714
1981	0.057577319135028115
1982	0.008510084999639872
1984	0.10630810078750715
1985	0.006672682606123542
1986	0.07725966203498365
1987	0.01548411597537705
1988	0.057488075572389566
1989	1.0246537651242345
1990	0.2600038436756647
1991	3.396980108592975
1993	5.25672868699922
1994	7.072391840901901
1995	2.600763074098511
1996	11.981935757822383
1997	5.914932598162298
1998	8.78626890069473
1999	11.881918819188193
2000	5.0119171099355935
2001	0.5245333468920098
2002	2.139425419003365
2003	0.47731884963967797
2004	2.541369164926516
2005	1.5422135763480664
2006	1.5306894412873002
2007	0.8086512977374212
2008	0.8445640435475016
2009	2.6530390243091064
2010	1.4450995901873496
2011	2.4776774608237693
2012	4.921307101594978
2013	17.121514363224456
2014	8.625762595540088
2015	10.233466620733058
2016	20.315307219796672
2017	34.514567175810846
2018	27.66980331708906
2019	17.49207007205388
2020	22.28663556236087