Year	% of total merchandise exports
1988	0.026152957220602933
1989	0.6779721846855485
1990	0.05085811849727007
1991	0.7169679334117506
1992	0.493607710839926
1993	9.584016822065333
1994	1.4465327460661759
1995	9.381097284892109
1996	2.670963317115348
1997	2.066696251331391
1998	2.693213047989124
1999	1.4990649635232915
2000	12.71443528184905
2001	16.319008672981326
2002	6.557253787672073
2003	14.015770504911412
2004	4.261025227943448
2005	1.8371570628357279
2006	3.235266702827804
2007	1.5230416274062941
2008	0.04089882941141199
2009	0.5381196760240032
2010	3.332823476251443
2011	0.09500514230215293
2012	0.8201022348108686
2013	0.7977136404439497
2014	1.5280714993293745
2015	1.2419116875826959
2016	3.234707554402838
2017	1.061056969831705
2018	0.3391927840790532
2019	0.05975346487866758
2020	0.02232223718308163