Year	% of total merchandise exports
1972	13.333333333333334
1973	20
1981	0.5952380952380952
1988	0.007301565924060832
1989	0.021880419767936466
1991	0.4587155962868691
1992	1.7581301309408406
1993	1.9533517117654289
1994	5.719927839007726
1995	2.3351794072781056
1996	1.2043839574720268
1997	2.033602053747114
1998	1.7252261725240552
1999	1.5062326868527545
2000	2.5852814243442475
2001	3.6072898561025566
2002	1.1389644923782645
2003	0.2683315674327666
2004	0.8933870912711793
2005	1.1164522466309084
2006	0.40987408914873213
2007	0.5432108740703356
2008	0.411715639250122
2009	0.8621798018727946
2010	0.7934576420838628
2011	0.3805544880738628
2012	0.5630584858805606
2013	1.000424492118847
2014	0.9168436759952027
2015	1.1540463407821178
2016	3.2988730666373733
2017	2.6313590383668246
2018	0.9728753286990823
2019	1.4056236810836362
2020	0.9623515518782374