Year	% of total merchandise exports
2007	0.25377567993289896
2008	0.07275004244316692
2009	0.06002272036849037
2010	0.06057461829859591
2011	0.06774945223107154
2012	0.06451636667346958
2013	0.06725008954784892
2014	8.473546698422616
2015	8.444784851729981
2016	8.387232116878451
2017	16.076798684934836
2018	11.111998671822713
2019	9.172858012279677
2020	1.5009437669109857