Year	% of total merchandise exports
1960	0.38953811908736785
1961	0.21231422505307856
1962	0.2315886984715146
1963	0.5381268605449966
1964	0.46568484777926533
1965	0.26565770407341815
1967	0.6635615389523384
1968	0.24251242876197404
1969	0.43263964950711936
1970	0.23879758393032727
1971	0.6295778125257181
1972	0.3511397651393046
1973	0.778069302451823
1974	0.2689525007864108
1975	0.5672029176828586
1976	0.5515604272847867
1977	0.6207236160066348
1978	1.0111373808567903
1979	0.8564474650991918
1980	1.7295909313904574
1981	2.5930416938718404
1982	6.0701689251902735
1983	2.4771773379995765
1984	2.252154309190575
1985	1.4053349002692632
1986	1.3057522196690925
1987	2.0190294308222216
1988	1.9726201696006294
1989	2.091883521215271
1990	3.202452255631516
1991	3.024689396106422
1992	2.869598856753229
1993	3.0961099163932317
1994	0.6127312195384393
1995	0.9737145635777649
1996	1.0291449149228307
1997	2.497019240245445
1998	2.2638077408199995
1999	2.330644774168253
2000	3.399507056777111
2001	2.3513465840623478
2002	3.8158865581851207
2003	3.545249406511175
2004	2.900629092998504
2005	4.050178831451513
2006	7.008800953363478
2007	10.606513508831156
2008	13.965809089141187
2009	17.420850202201617
2010	22.378623929540655
2011	22.33329205764591
2012	24.12724103840628
2013	20.33541782866882
2014	17.744653868690214
2015	15.363963142457521
2016	12.399959816540191
2017	13.054364911661178
2018	12.610996065379876
2019	12.523565987793269
2020	12.965250975286818