Year	% of total goods exports
2009	0.5614101393745954
2011	0.5573698471786676
2012	0.5788493062564841
2013	0.5824926997659913
2014	2.8400270191683714
2015	0.5123572029024087
2016	2.1718448538815327
2017	4.208550647892628
2018	2.6744657307254016