Year	% of total merchandise exports
1970	0.0011725219481452168
1971	0.002331083837430213
1972	0.0045430615424495654
1974	0.001781502793533419
1975	0.0002554565519496444
1976	0.0024711778292514966
1977	0.032102297530540835
1980	0.003748028380903796
1982	0.23588509809607028
1983	0.16374077496169637
1993	0.04213986941214104
1994	1.899185875201319
1995	1.6399909574592648
1996	2.0585239520532737
1997	2.6600187702232527
1998	6.956857025610072
1999	4.653109676336482
2000	0.001651254522414428
2001	1.8559606713994616
2002	0.7839156878068628
2003	2.5437124710676677
2004	0.0025199066471725596
2005	2.384688071191473
2006	4.032147248222959
2007	7.010175401929941
2008	5.551988140295119
2009	5.565572478247754
2010	5.353902976300589
2011	2.2257051513721757
2012	7.474594940976152
2013	5.463705762857188
2014	7.251395971552224
2015	9.954040022459143
2016	8.953773308645864
2017	6.509188620459884
2018	4.715405809645262
2019	6.171461650920041
2020	8.920879811002232