Year	% of total merchandise exports
2007	0.13689319532332056
2008	0.03923841865759302
2009	0.03237959557767593
2010	0.0326707123635761
2011	0.03654749069662296
2012	0.03479705074340639
2013	0.036278460395997636
2014	4.570137021391463
2015	4.554625362513746
2016	3.0544592508522497
2017	14.004570738749301
2018	9.859620942104588
2019	8.62199264547083
2020	0.13823423946159294