Year	% of total merchandise exports
1960	4.329725228975854
1961	3.130434782608696
1962	3.873239436619718
1963	3.720626631853786
1964	3.9806347498655192
1965	4.703247480403135
1966	5.700586041555674
1967	6.543075245365322
1968	2.137536535610894
1969	2.2247775666412117
1970	2.9449162407366942
1971	2.3287839382571134
1972	1.7102800437899495
1973	3.8829946613656205
1974	3.663835942349858
1975	6.737856398087226
1976	2.992070513905029
1977	6.514058329144039
1978	8.792794737001831
1979	2.941049356037687
1980	5.861857440804809
1981	4.459409184732083
1982	3.971867849257794
1983	2.1526315816480297
1984	1.7668934671113041
1985	1.9308019004295782
1986	0.3283422309300695
1987	0.19992519268974754
1988	1.4856295299323041
1989	0.49158979459513025
1990	5.4382692689509495
1991	3.7653432991014
1992	2.3565069533286622
1993	2.4201622265475193
1994	3.2470216216115504
1995	1.7788056855888472
1996	3.180899073647836
1997	1.377161807025506
1998	1.918470649640605
1999	2.871413684732312
2000	1.5584629443899853
2001	2.8527573295658333
2002	2.0018948967934858
2003	5.735106367057324
2004	9.777220087743896
2005	17.345896793476317
2006	29.958824793008137
2007	25.711526478112027
2008	22.329390352870906
2009	17.56292412366025
2010	20.876577017822758
2011	22.98848676658339
2012	26.452099183549265
2013	15.69495713318672
2014	8.035157413077888
2015	9.474687043229698
2016	16.97011689337425
2017	19.27935094200476
2018	20.88801837577659
2019	36.62297895245346
2020	47.59995739695305