Year	% of total merchandise exports
1988	0.03726249329392276
1989	0.4038493620424582
1990	0.012168500965738188
1993	0.0012016121358596407
1994	0.020605137359744004
1999	1.9394703510494455
2003	0.07608764160332457
2005	0.014312106192221149
2006	0.035199411984443416
2007	0.08173727465022483
2008	0.23213172438337182
2009	0.43094459780825534
2010	0.13817436515305193
2011	0.9270945330861129
2012	0.1910702083850542
2013	0.05134245416930929
2014	0.09421699468295774
2015	0.04148056520590911
2016	0.004222487892642686
2017	7.507409655117309
2018	0.4343770917174671
2019	0.20553466305809434
2020	0.04767157226503806