Year	% of total merchandise exports
1979	0.0018651148910772905
1981	0.001926114257097731
1982	0.001926114257480968
1983	0.0019261142572170012
1984	0.0019261142573347991
1985	0.001926114257042039
1986	0.0008767669826792454
1987	0.0427984733719928
1988	0.42835287370315556
1989	0.4361399927909594
1990	0.10513080859426707
1991	0.43531264449176005
1992	0.8825738032727172
1993	1.8594313975528391
1994	0.7100499960220891
1995	1.525020981501531
1996	0.9055494060195404
1997	0.7604197092757525
1998	0.506788375195789
1999	0.5583717421649571
2000	0.24886867762600162
2001	0.5305228827729898
2002	0.02274576365228225
2003	0.3748741708587462
2004	2.280395465406625
2005	3.4695060971373053
2006	4.585382117553145
2007	6.096192970908188
2008	4.977075111775757
2009	11.559363197673893
2010	8.271243556492944
2011	10.566021384270554
2012	11.98901130304207
2013	6.647900733027097
2014	6.005357940759081
2015	14.690866831478209
2016	10.347281898219096
2017	10.352198418838173
2018	20.374520115648284
2019	21.571468269314373
2020	9.724746186659013