Year	% of total merchandise exports
1981	0.01203876482369929
1982	0.0037550223424204876
1983	0.011362345188618228
1985	3.066252791430977
1986	2.534436712408659
1987	1.8442858940403106
1988	1.3246780891003898
1989	0.6647908697987208
1990	1.034323091233203
1991	1.309752866230173
1992	0.35238190853939205
1998	0.020594933990264134
1999	0.03248983339484529
2000	0.20554006422924218
2001	0.1284395266653052
2002	0.5144779815602937
2003	0.09829928808876465
2004	0.09288701309361783
2005	0.08230961321217214
2006	0.10349515910969014
2007	0.1289725117646785
2008	0.08277466440871073
2009	0.0796323110229275
2010	0.008572195574065626
2011	0.06542531306866257
2012	0.04222670946955677
2013	0.038660916606425344
2014	0.03935885069841294
2015	0.029912451902374456
2016	0.041165650380074255
2017	0.06540802434372316
2018	0.23816404656543194
2019	0.05772269747351883
2020	0.047277933693603474