Year	% of total merchandise exports
1960	2.0242914979757085
1961	2.262443438914027
1962	5.913978494623656
1963	1.695813460519343
1964	3.520726859738785
1965	2.311796087729698
1966	4.011799410029498
1967	4.97737556561086
1968	5.313432835820896
1969	4.805458768873403
1970	8.12887969258055
1971	6.60996354799514
1972	5.422336686040442
1973	2.9028857932370453
1974	1.0786551236118371
1975	1.0032365939418704
1976	1.6947720273416962
1977	1.220934607570171
1978	0.7378332987375692
1979	0.8453856539879092
1980	0.5209395890365464
1981	0.5989704748946212
1982	0.3607151140126226
1983	0.5216295500557782
1984	1.3541655426912826
1985	2.061314332118281
1986	1.0448998041283712
1987	0.5867808244455106
1988	1.8149110309414134
1989	1.084078425490582
1990	3.525829272912726
1991	5.00717552332874
1992	3.7901789964814663
1993	3.127663220514345
1994	3.0652514101375985
1995	10.722389390170465
1996	5.5280719259477875
1997	6.921175972445647
1998	12.337393510044734
1999	10.69517671267494
2000	11.572337692447132
2001	9.666348217705622
2002	8.94724354829648
2003	8.361214161471421
2004	13.372962762835696
2005	4.1450956146637905
2006	5.198874757277314
2007	5.866123797499634
2008	4.970460057000565
2009	3.490525406455628
2010	6.18790876727761
2011	5.840795985905763
2012	4.690311652254907
2013	10.626016499673291
2014	14.356748896863818
2015	16.126571839385697
2016	8.889662914073165
2017	9.048436250997414
2018	7.444626434319705
2019	7.444626340334344
2020	7.444626362959861