Year	% of total merchandise exports
1965	0.015154959460483442
1966	0.007157171485828799
1968	0.15881961166043343
1969	0.4001574389923905
1970	0.009510223490252021
1971	0.20759330165613324
1972	0.04885943750572572
1973	0.024401689347724072
1974	0.005338125784037225
1975	0.01709657427392986
1976	0.053838784510265
1977	0.07708815134279225
1978	0.03648513710730471
1979	0.014219357285050714
1981	0.051569321371350285
1982	0.09626663052773742
1983	0.019753441139234825
1984	0.032169669815160055
1987	0.027019318812951262
1990	0.05358397592659294
1992	0.003484136953843663
1993	1.019027295137469
1994	0.06996992791786073
1995	1.378535106463807
1996	2.006281562452035
1997	2.741878043417914
1998	2.7768512833694454
1999	2.907929291286378
2000	2.7088007902228406
2001	3.3607152944976715
2002	4.622209762431459
2003	4.296356453446452
2004	3.5899397691944515
2005	3.2877963984268304
2006	2.9109652004506708
2007	3.2138034812837195
2008	3.2186406524667484
2009	4.8791996285684345
2010	4.1855480944957355
2011	3.9825467613315677
2012	3.87143360093705
2013	4.876962508664126
2014	4.620270540823867
2015	5.88153177399545
2016	6.189712755432057
2017	5.969593631084949
2018	5.59565297279897
2019	5.946779451741956
2020	9.041938164016253