Year	% of total merchandise exports
1982	16.216216216216218
1983	35.483870967741936
1984	23.076923076923077
1985	38.775510204081634
1988	9.285301808988098
1989	52.67755412668554
1990	0.0057167482810675345
1991	0.008212370791639653
1992	0.0073563796940186
1993	1.0713648339680224
1994	9.169698763264938
1995	4.626123056996845
1996	2.2955903454181192
2000	0.05033856088167728
2001	0.5798044566657329
2002	1.4398207475849534
2003	0.6707062955014413
2005	12.461012320576858
2006	8.524200985419615
2007	6.619471307189681
2008	2.3131271659053625
2009	0.0006676212774791209
2010	0.0004861055454795986
2011	0.20190308449773361
2012	13.161607005767657
2013	21.93308217226873
2014	3.2372135032698792
2015	0.12675465762574195
2016	0.5679449515391539
2017	1.244960123668349
2018	15.47515482862933
2019	0.19147050698331128
2020	0.15417406353103863