Year	% of total merchandise exports
1988	0.21030426763897042
1990	0.34489184116234184
1991	0.0965590054258423
1992	7.220702754635323
1993	2.0867730729057206
1994	7.732106859600253
1995	7.397952671005795
1996	6.888210047480318
1997	2.087357224970002
1998	7.129647722611826
1999	33.93711636847866
2000	12.91609528359049
2001	5.166318666734644
2002	13.2238700263319
2003	8.982342724260556
2004	8.967786676144726
2005	35.14899954834016
2006	29.750513126082094
2007	4.491559832351449
2008	7.561115925548084
2009	2.239840166945294
2010	4.0018569790892276
2011	2.540608917395205
2012	71.08351996055652
2013	53.413316543388035
2014	0.46852835605181214
2015	0.7068620754297897
2016	3.618989947909881
2017	21.75443835161067
2018	3.4625295336899646
2019	4.947482818038171
2020	1.9083615571032042