Year	% of total merchandise exports
2004	0.01747556908436868
2005	0.025395203549322485
2006	0.00732490714948679
2007	0.04608368595877288
2008	0.007142879463076369
2009	0.6019941323311171
2010	0.003398831580748244
2011	0.004721998456611425
2012	0.06800667069085739
2013	0.04633975794514002
2014	0.06503181431626186
2015	0.020199743172128113
2016	0.02299106721291257
2017	0.025089421190938085
2018	0.04292440150675346
2019	0.007367673712773093
2020	0.0020948823772805937