Year	% of total merchandise exports
2000	8.083835183217857
2001	0.8745268364469806
2002	3.1784788607116727
2003	0.42351228077024655
2004	0.8513524583625109
2005	0.04508389526370321
2006	0.03718215938352781
2007	0.040306909176904084
2008	0.02155993567234122
2009	0.0584798772368408
2010	0.06990201232494113
2011	0.07033673106669348
2012	0.08113588410656535
2013	0.023969194162559705
2014	0.07380957538087295
2015	0.007109034685386986
2016	0.038777203659153776
2017	0.06334997011368966
2018	0.07126185318061765
2019	0.020474247826116766
2020	0.05061713292658591