Year	% of total merchandise exports
1975	5.281173594132029
1976	1.9122609673790776
1977	19.41562214659251
1980	3.562088556226892
1986	0.025581302592432045
1987	5.834187581525063
1989	15.147212668060387
1990	0.31171808253078714
1991	0.0348456765161972
1992	0.007175277045497385
1993	0.054437144431923656
1994	0.042544224691195155
1995	0.3969876689984742
1996	0.1149696765343868
1997	0.296130735913895
1998	5.959491381048418
2000	0.3224442556326256
2001	0.01604662891646971
2003	0.03733635358418418
2004	0.13068765780258104
2005	0.07152615718007825
2006	0.03527328895364674
2007	0.001514604643556854
2008	0.17879699782535188
2009	0.009528861140462417
2010	0.09082127985654863
2011	0.08163363340994585
2012	0.07746052779860214
2013	0.022520487975445085
2014	0.21055172277231146
2015	1.2854840787706532
2016	1.7324572555380156
2017	0.0010768977242848231
2018	0.09656729152050723
2019	1.4609999741904596
2020	1.8980517313736944