Year	% of merchandise exports
1970	5.229195304706483
1971	3.519764534269066
1972	3.934601091509942
1973	4.196112449699058
1974	2.05046494454718
1975	1.511499997434611
1976	1.68170581771421
1977	1.4738833115698369
1978	1.2371924580684466
1979	3.143462846933573
1980	8.734382885689476
1981	1.2849324378455174
1982	1.9080370599541232
1983	0.9979025171892352
1984	1.0037231056803508
1985	0.9492651096994477
1986	1.1534989805024833
1987	1.0932958489559745
1994	1.9891699369560745
1995	2.4101920363510083
1996	5.693358413061552
2000	0.6370483601833342
2001	0.6079001465082975
2002	0.6318690782704106
2003	0.7169247335853941
2004	0.5507287635951935
2005	0.43718508479850504
2006	0.368366737292636
2007	0.38393040131316797
2008	2.0578251135836934
2009	3.4263494846323974
2010	1.8512800212385514
2011	1.690874723158497
2012	2.5925091523141726
2013	3.9312822492925377
2014	2.3310066451876663
2015	2.8177191755785884
2016	3.271971248145063
2017	3.455744390241908
2018	3.4191087648886764
2019	4.338953135425052
2020	5.094568059807637
2021	3.5310278207067163
2022	3.928984261115779