Year	% of total merchandise exports
1982	0.10116066189736342
1984	0.0027436343559116864
1987	0.013866852800134463
1988	0.0018801459552025717
1990	6.102423382326381
1991	7.5362846906572525
1992	4.085172227862911
1993	5.617962999406536
1994	4.913994408851224
1995	2.0623812379296362
1996	31.99050446270777
1997	3.1794449956039186
1998	3.3838328884023534
1999	3.337201747909313
2000	2.626404515823223
2001	4.077072361147695
2002	2.4066657311317137
2003	2.1124175018834146
2004	1.4196221019873314
2005	1.8677535961033376
2006	2.168220224570126
2007	1.8078289605917914
2008	4.486507597743369
2009	1.2468283024237423
2010	1.5704088940494563
2011	0.8216785448092312
2012	0.9028547612931372
2013	0.6377846459072501
2014	0.6432225160730796
2015	4.833734300544125
2016	2.7431768366597877
2017	0.4647186664860788
2018	33.625586093097084
2019	13.506479165964445
2020	0.8356998066562076