Year	% of total merchandise exports
1962	0.3676470588235294
1964	5.114401076716016
1965	3.567318757192175
1967	3.5322777101096223
1968	1.0262257696693273
1981	5.823754789368917
1982	1.170351105188902
1983	5.604542928026126
1984	2.937148517324125
1985	0.1887834812256338
1986	8.024412495788216
1987	3.0654454441481516
1988	1.3609906781202572
1989	0.566013740600925
1990	7.57283817562147
1991	0.19565524634208883
1992	1.5582178144604375
1993	0.9216311095361918
1994	0.8007837821953686
1995	7.74171258832796
1996	0.3222535076814024
1997	0.421846537343006
1998	0.46384574183181576
1999	0.01730669384458589
2000	0.07260255346440707
2001	0.036097971033031265
2002	0.018197563251462656
2003	0.012900486198532256
2004	0.04901936810612534
2005	0.03753583084530599
2006	0.03265619881190491
2007	0.04757745905454773
2008	0.1350078081735959
2009	0.16283760325530053
2010	0.45735518631904803
2011	0.2774766258052357
2012	0.14207637504063422
2013	0.11419639684780543
2014	0.14645892109005598
2015	0.15620998228343366
2016	0.2880674450899791
2017	0.4014729932804043
2018	0.42318573320963293
2019	0.4977191866283673
2020	0.438992552342241