Year	% of total merchandise exports
1986	0.13855054811205844
1987	0.13413715146948005
1988	0.9634101539615136
1990	0.07146916774570022
1991	0.5719813306805053
1992	0.6489545850555508
1993	1.2933602405179794
1994	2.7480809103759185
1995	1.547962360697736
1996	1.35619400835069
1997	1.1063750052193997
1998	4.430485178638242
1999	2.1977674488327827
2002	4.734224507166334
2003	0.42747932671005073
2004	0.8098914260530885
2005	0.1580212893713069
2006	1.7600316315877016
2007	0.24774483409692555
2008	0.0012177627114503434
2010	0.179448601416998
2011	1.2414176845267182
2012	1.4473676445221046
2013	0.45103703800706124
2014	0.1977390192841651
2015	7.256244902445806
2016	4.209804632580911
2017	3.807041574524798
2018	5.404256871114786
2019	4.20762301412815
2020	2.7119940614781712