Year	% of total merchandise exports
1974	0.8010986495765621
1977	1.2606005402349392
1985	1.2770001602167296
2004	0.008422647437706415
2005	0.008175148527890317
2007	0.004681936837190659
2008	0.013556818157558914
2009	0.016195687526347542
2010	1.0663098548047563
2011	0.02511247458603493
2012	0.024434868301818895
2013	0.09377231605417898
2014	0.0313478872168165
2015	0.048529404250407145
2016	0.048773115728812204
2017	0.11259710825156682
2018	0.10130550112326506
2019	0.0921877566047139
2020	0.12292824650011554