Year	% of total merchandise exports
1997	0.17545338998106105
1998	0.04638319601546331
1999	0.0071078474036867035
2001	0.021698408202138857
2003	0.6560199445865075
2004	1.8670142449923905
2005	0.13356905498887506
2007	0.01920135348075607
2008	0.0011730741715806061
2009	0.0036731802371126636
2010	0.01151535880441551
2012	0.008327192047941816
2013	0.007734873641801484
2014	0.012958005122207373
2015	0.031003329671902047
2016	0.00262080610648461
2017	0.0281875597568919
2018	0.004135440010443941
2019	0.007746330035143513
2020	0.007578584748627222