Year	% of total merchandise exports
1960	0.8302583025830259
1961	0.12410797393732546
1962	1.1469311841289522
1963	0.8207485226526593
1964	2.1481942714819424
1965	3.0531948378973874
1966	3.6180529653114504
1967	1.376597836774828
1968	1.6289592760180998
1969	1.9971726864374626
1970	1.7578099417119655
1971	2.3405339130125746
1972	2.429234630446221
1973	2.666313582980515
1974	1.7185833477279768
1975	3.887221277265244
1976	2.560772950591166
1977	2.5306834983047626
1978	2.813083555947821
1979	2.2554925108236747
1980	3.9069879298263075
1981	2.4774361503262727
1982	4.304782746551114
1983	2.9455192412759343
1984	3.7611284346983567
1985	6.643074589794596
1986	5.9669292423997025
1987	4.309453063703849
1988	4.238685034936003
1989	4.23868503705381
1990	3.890256776855473
1991	2.206787523810758
1992	1.0028221298309068
1993	7.701031422367572
1994	8.707946655549161
1995	7.520687681786212
1996	9.904468031408037
1997	10.993397205675809
1998	7.79707877962975
1999	12.014124389957098
2000	6.5135087280809785
2001	4.53776202072636
2002	3.725875653736817
2003	3.6932238069423966
2004	8.450877469219739
2005	7.380541968826422
2006	7.979518318267881
2007	8.866364926504172
2008	14.72403928673641
2009	6.073067716318182
2010	4.804503710477666
2011	8.111635313822742
2012	9.505970818619524
2013	10.745995739752049
2014	19.603871894878644
2015	31.810960038839493
2016	34.64496454673655
2017	43.489666097271986
2018	43.87201555643706
2019	35.46836072153076
2020	26.508678099033446