Year	% of total merchandise exports
1987	1.4346987989266824
1989	0.6410609392373028
1995	0.10714176634552784
1996	0.18661152180013768
1998	0.09272432890503526
1999	0.5403795510336759
2000	0.32683021063066753
2001	1.3399002954505392
2002	1.6204125568616712
2003	0.5063928039886588
2004	0.011117235527686958
2005	0.017046368457329587
2006	0.005058603128367916
2007	0.001889815041418422
2008	0.013028815685107983
2009	0.0014489262645752815
2010	0.00672355197873593
2011	0.0014737711233879544
2012	0.294743379933095
2013	0.39047537398385535
2014	0.5487781576569728
2015	0.9625901151081893
2016	1.40420559493603
2017	1.7220088845175539
2018	1.4857889249493677
2019	2.649145867346383
2020	4.628810529887687