Year	% of total merchandise exports
2005	1.0568993300318568
2007	0.0030909098179508153
2008	0.004945765459739057
2010	0.21729030012169942
2012	0.009447519669058513
2013	0.045179625876129385
2014	0.007999036931871883
2015	0.0023532989631002725
2016	1.175657688944309
2017	1.6880639309528354
2018	50.3386694385378
2019	2.4404920696708023
2020	1.0024627786557336