Year	% of total merchandise exports
1969	0.0008328544420291666
1971	0.002681270654163008
1973	0.48424919594305166
1974	3.5653789614285394
1975	1.2422360248447204
1976	0.971120396105211
1977	0.0683624678464664
1978	0.21523409253708034
1979	0.3996948159960409
1980	0.24757704257500737
1981	0.0037562483747002225
1982	0.4187666334804117
1983	0.00267379679144385
1984	0.7191934758877545
1985	0.013345534965301609
1986	0.013345534962238453
1987	0.013345534962004527
1988	0.028695455538024647
1989	0.013345534962859885
1990	0.0234136267710753
1991	0.3015641093020158
1992	0.02043608242664042
1993	0.07826659639448282
1994	0.16909994378792778
1995	0.07013799914396014
1996	0.11769337684221699
1997	0.04770913024273886
1998	0.08925176905826801
1999	0.5601786892040158
2000	0.29291424618534234
2001	0.2818558384821554
2002	0.7257288474055258
2003	0.2187903843116145
2004	0.8813152507955165
2005	1.5458344998193987
2006	2.794176217685379
2007	1.4554712269157326
2008	1.737981879726474
2009	1.7315740296612026
2010	0.9894711815179406
2011	0.7058896769704128
2012	1.1091795187723332
2013	0.6999225675091181
2014	2.1476235195564604
2015	1.5377434577144953
2016	1.2843608914071953
2017	1.8027312222068885
2018	1.7336354704851786
2019	8.683187715494787
2020	8.880217126413458