Year	% of total merchandise exports
1965	0.008167265599477294
1966	0.007154099298898269
1967	0.013986013986013986
1968	0.013230138254944764
1969	0.011872254541137363
1970	0.005319714863283328
1971	0.021039343572480537
1976	0.009435520015096833
1977	0.013127543461545675
1978	0.0009604026007702429
1981	0.011052166225301292
1982	0.003262926627656566
1983	0.0350385423966363
1984	0.0032430328843534475
1985	0.011102106069521387
1986	0.012956444751560171
1987	0.0231441882930658
1988	0.004470412574376489
1989	0.012496926159291466
1992	0.0007977264804226083
1994	0.026956914448556055
1996	0.02738584271000774
1997	0.01757962578080475
2000	0.09641454320430863
2001	0.0011648899126056142
2003	0.023091974421296246
2004	0.004863553961757658
2005	0.019460266160815514
2007	1.3560139319583399E-05
2009	0.0074415343491388486
2011	0.002920625369197247
2012	1.3340532522991229
2013	5.422947670249075
2014	0.3737597412089369
2015	0.03154594060703993
2016	0.39258871142336976
2017	0.5203100984683898
2018	0.2071862963995135
2019	0.18135422221898378
2020	0.14570803966794324