Year	% of merchandise exports
1962	39.497327759672544
1963	34.32063121702929
1964	41.04418862500694
1965	39.18410832133463
1966	45.82914169748561
1967	36.13833731231711
1968	42.6619309551488
1970	52.257015674650255
1971	44.650098472965745
1972	42.347204705966455
1973	30.34950806860402
1974	18.61306935706706
1975	8.567150022129534
1976	6.106471917356098
1977	13.644748045573996
1978	8.41043156551273
1979	3.722564464274224
1980	2.490382028617882
1983	2.1041469600153317
1984	2.993792030384776
1985	1.6777650363874526
1986	6.78569013335919
1993	1.847705562478905
1994	12.481325422647146
1995	8.31735925469271
2007	2.895073624034496
2008	1.8961941880734152
2009	1.9278593877198589
2010	1.5832436730321224
2011	0.7460832832600439
2012	0.7777500667617647
2013	0.9371000670687137
2014	1.267397046061011
2015	1.0919178602455812
2016	1.9049220381424734
2017	2.817456942091345
2018	2.219643613532141
2019	5.706617334592514
2020	6.57371992977005
2021	14.208494309373945