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	4.760732798858996
2001	4.722446796541497
2002	4.961975221193225
2003	5.107559272472187
2004	5.277985756479508
2005	4.390097558121027
2006	4.306142290267297
2007	4.458153288546023
2008	4.385833469351722
2009	3.661367735635404
2010	4.608948822984608
2011	5.096019864047279
2012	4.503718140184041
2013	5.047915829757612
2014	5.442718046495026
2015	5.651537613245006
2016	5.142348389430541
2017	6.082104938113621
2018	5.252120095352545
2019	5.765366208404521
2020	9.686930309851833