Year	% of total merchandise exports
1965	0.08650519031141869
1966	0.45207956600361665
1967	1.089108910891089
1968	0.570884871550904
1969	0.5036242510579462
1970	0.7007308786024493
1971	0.5484620773100681
1972	3.079413616332404
1973	3.010098906819365
1974	0.7971144905366088
1975	0.6345991983132911
1976	1.0342384551574855
1977	1.1228055416177174
1978	0.9425055292568744
1979	0.02201488876498867
1980	0.01294934217341759
1981	0.07647150289444637
1982	0.23225685687263556
1983	0.10373264211248183
1984	0.4810525660129654
1985	0.3792566451330211
1986	0.3792566450794806
1987	0.4429517527886807
1988	0.13527945888216447
1989	0.023808067658596676
1990	0.335489484936964
1991	0.00528667533327919
1993	0.1754733815802518
1994	1.6453318819459624
1995	2.810228605103646
1996	1.5067067499540714
1997	0.9446952271519945
1998	0.9379740762724508
1999	1.7060341373832215
2000	1.0546637799368008
2001	4.037140249362168
2002	3.124645530237621
2003	1.8366558156082555
2004	3.8190827480435794
2005	11.319512051318984
2006	11.735680437060806
2007	6.876272433503537
2008	6.491890676682807
2009	22.955462322761225
2010	15.370842155844795
2011	17.395360657151517
2012	17.724417164095467
2013	13.70367149279408
2014	16.835805136504465
2015	12.744864623137808
2016	16.117533616974356
2017	14.005691021746605
2018	14.448708549819344
2019	13.65345742895573
2020	13.784854286367864