Year	% of total merchandise exports
1960	3.0303030303030303
1961	0
1962	0
1963	0
1964	0
1965	0
1967	0.012330456226880395
1968	0
1969	0
1971	0.009431293030274452
1972	8.447849194312408E-15
1973	0.0028675479597396266
1974	0.0010078410030048678
1975	0.9251223164299817
1976	2.7866355539882504
1977	0.9147791723078049
1978	1.8105434340696571
1979	0.002638323533845922
1980	0.005666240972152605
1981	2.0741225779201793
1982	0
1983	0
1984	0
1985	7.05164687239082
1986	0
1987	0.0005991545780562348
1988	0.0011348688583608648
1989	3.4063061540910917
1990	3.4014114532524906
1991	2.6763533817212415
1992	0.34596434975235146
1993	0.05836891910122878
1994	0.22277197631870072
1995	0.11834983147692327
1996	0.1711339531943188
1997	0.16588799162253054
1998	0.3788624510651384
1999	0.2163148902166945
2000	0.0019799672089874125
2001	0.0006950892547339098
2002	0.0030459919969224826
2003	0.0008227302466788123
2004	0.0004742806592987525
2005	7.863214726074924E-08
2006	0
2007	1.4958203551965483E-05
2008	9.924412572703656E-05
2009	0.0020154603951001867
2010	0.0014904622653806503
2011	0.00032716328325942427
2012	1.8303691390651983E-05
2013	0.0014009228956536808
2014	0
2015	0.0004063690314472362
2016	0.05416126951705062
2017	0.029427361183377444
2018	0.2761580449966508
2019	0.023258797644934878
2020	0.025805103376087504