Year	% of total merchandise exports
1960	2.3823358512492736
1961	0.9018036072144289
1962	0.7293566032821047
1963	0.28365136668385765
1964	0.8076839118096486
1965	0.8759421470767976
1966	0.3191180736872643
1967	0.36603221083455345
1968	0.2750190985485103
1969	0.49648206990467547
1970	0.4211682841970335
1971	1.5758498592128003
1972	1.1798206153246826
1973	0.6669653715675606
1974	4.2199504210116565
1975	2.153985918691801
1976	2.0833613490579994
1977	2.525577467701446
1978	2.2628703045747467
1979	1.7883339154732798
1980	2.699982920265336
1981	5.01585422086609
1982	2.7805140467952483
1983	3.1434502678603695
1984	3.0961222903532257
1985	2.2380019244681373
1986	1.1470436878741097
1987	1.6639084807081257
1988	1.360509778095092
1989	1.9323412022854778
1990	1.7823624582075277
1991	1.7301654606839338
1992	1.916352496473431
1993	1.3614219308886435
1994	0.9717532609529557
1995	1.1276335855962196
1996	1.165398428397449
1997	0.9843337221127859
1998	1.0537454440845095
1999	1.143557740318248
2000	0.9520392621363949
2001	0.9403549946290841
2002	1.1128645044185614
2003	1.346321756597441
2004	1.4899447441621259
2005	1.2609882209836423
2006	1.4842099156716018
2007	1.738958437110025
2008	1.8165903447530898
2009	2.0861559904148095
2010	1.7242498001148112
2011	1.7746241135814578
2012	1.712336330408392
2013	1.5764493002490676
2014	1.37102004316963
2015	1.112429175309111
2016	0.9556109668696963
2017	0.9078727044611635
2018	0.9210689833085268
2019	0.8835262811264621
2020	0.815566297501483