Year	% of total merchandise exports
1976	0.001663600097154246
1977	0.006137585280132313
1978	0.002674547667125797
1979	0.018225135896122006
1980	0.01606343596895376
1982	0.012805447588056282
1984	0.006277100172861681
1986	0.026799387442572743
1991	0.0021777952001653207
1992	0.02281484485827212
1993	0.0077423350879758995
1994	0.050572007507974685
1995	0.4823030023525505
1996	0.6283974101995702
1997	0.34571010983031675
1998	2.136338354104569
1999	0.5488329519413834
2000	0.014652248474405922
2001	0.00012387163005218404
2002	0.5451145527911833
2003	3.617594792039692
2004	4.4238374304225605
2005	2.856717988475139
2006	2.7750981886518202
2007	4.262597173841645
2008	2.9971514441062874
2009	1.1004934016411676
2010	2.3499110068445574
2011	1.8427830065855288
2012	2.9698800039472055
2013	2.396067675660564
2014	2.754122596752592
2015	0.1649571509698584
2016	0.23559992091521753
2017	0.23565346701206205
2018	0.20194392822074606
2019	0.23675455989819297
2020	0.26028175885006655