Year	% of total merchandise exports
1960	4.310501696584352
1961	1.301522702920562
1962	0.6942668177001499
1963	2.5791785971891326
1964	3.5281279096542955
1965	3.1481582636878427
1966	3.38794472613618
1967	3.3938213556390484
1968	3.0066819143092065
1969	2.5352494150030074
1970	1.988340913051544
1971	2.40461300939256
1972	2.1348379087770595
1973	1.8500426904397893
1974	1.81930059413478
1975	2.2066201583718157
1976	1.9947620908704322
1977	1.7177587221006076
1978	2.4585517478651373
1979	3.015176252918934
1980	2.821386752585942
1981	2.035705325121339
1982	2.391721431184645
1983	2.2228003532605207
1984	2.5421461337711313
1985	3.0575639156114405
1986	3.8199487335918394
1987	3.19389529756423
1988	3.714803615551751
1989	3.247957684173846
1990	2.4580289938244966
1991	1.4798883856035883
1992	2.1451568874305664
1993	2.689415116094663
1994	1.6295074314642393
1995	1.1312776084870757
1996	1.295364590958115
1997	1.035508993392464
1998	0.4722912311323563
1999	0.577226884382978
2000	0.5605249318341173
2001	0.7531301558611126
2002	0.8111152718227365
2003	0.8177246954312479
2004	0.8057537351162634
2005	0.7965125922648737
2006	0.947398328029006
2007	0.9934764095595082
2008	1.0008272066691624
2009	1.2663870909839712
2010	1.4807651177908212
2011	1.531061143042547
2012	1.589175827962057
2013	1.7348712011363947
2014	1.6536219166104933
2015	1.5897179366632546
2016	1.7535450053445218
2017	1.73410586124331
2018	1.6281838030464402
2019	1.7300548794019839
2020	1.8974691260846586