Year	% of total merchandise exports
1960	0.4243093922651934
1961	0.39615958240119314
1962	1.4308426073131957
1963	1.2228599950087347
1964	1.1785970733156708
1965	0.6437963510623778
1966	0.8378003523634591
1967	1.2082822704878902
1968	1.2175865575772922
1969	1.46639634358355
1970	1.7416830054775172
1971	1.6013771390389473
1972	1.50093095717597
1973	1.0149095555337142
1974	0.8879630990783091
1975	1.7213936439672788
1976	1.8773184411958084
1977	1.7066454822704107
1978	1.6195905082762312
1979	1.4049026892454919
1980	1.906446134148572
1981	5.192002195696169
1982	4.770125628954487
1983	4.791687027679875
1984	5.6678016834897536
1985	5.820514178718639
1986	3.6579095302747575
1987	5.362073831721466
1988	5.723021181994894
1989	4.147163096266032
1990	3.811369444585253
1991	1.9555702455332664
1992	3.543488655880051
1993	3.590056664154659
1994	4.2239281567029625
1995	5.131275632178944
1996	5.467434227281424
1997	5.24237204850105
1998	4.666365464446325
1999	3.7026257855744387
2000	4.776993430934354
2001	4.735302313723611
2002	4.9728519082208855
2003	5.118649600782577
2004	5.287502049639211
2005	4.397335217556824
2006	4.312534651499403
2007	4.465175310901141
2008	4.391355184105448
2009	3.6680112903361297
2010	4.615527748666878
2011	5.105618977237926
2012	4.5115744276470515
2013	5.059379807597074
2014	5.457249306779722
2015	5.674408113332949
2016	5.1632675063484585
2017	6.1036205480654075
2018	5.26887498428201
2019	5.784312947220801
2020	9.771510948237053