Year	% of total merchandise exports
1970	0.14158623781768412
1981	0.24112995085700228
1982	0.716026167908022
1983	0.11057070878071067
1984	0.06251218015791662
1985	2.077920515692837
1986	0.03848193368452695
1987	0.1740744278489616
1988	0.2546925846728907
1989	1.4865448222939806
1990	3.3807351726211077
1991	5.307527085386691
1992	5.050745108659164
1993	13.804496845693897
1994	16.360526002986415
1995	9.310698401403892
1996	1.5889598628438935
1997	0.4562978534408518
1998	0.9371161082564442
1999	1.1476994591985958
2000	12.448325929305938
2001	0.4814852751297283
2002	10.43948682994808
2003	2.713603219795704
2004	6.697977764624717
2005	1.851309034024998
2006	9.804352712019357
2007	9.549097200498965
2008	19.565709994574267
2009	6.678186799484649
2010	11.070703056808016
2011	4.729405811296935
2012	6.093347125568909
2013	8.043630783309911
2014	16.85874856165797
2015	21.010955216136825
2016	18.150418037676793
2017	34.76825103626219
2018	38.55672290391113
2019	29.2742308853916
2020	36.4724924178976