Year	% of total merchandise exports
1960	3.776325344952796
1961	3.3459255261737724
1962	4.44743935309973
1963	3.033682801695293
1964	3.0371934383628387
1965	2.624016582654167
1966	1.6896991100423957
1967	1.32954017649791
1968	1.147170090857929
1969	1.1006510274850945
1970	1.0447818546328134
1971	0.812076072215249
1972	0.8528683019550812
1973	0.5129185356682616
1974	0.6821498732194082
1975	0.923773588770949
1976	0.6563846781612732
1977	0.7032327348926813
1978	0.790201969380353
1979	0.811217490067291
1980	3.059605646539618
1981	0.94335242621997
1982	0.9645234584097612
1983	0.8605736894000299
1984	0.9677707724300589
1985	1.1322024833680495
1986	1.6707946342683073
1987	1.6115943752469948
1988	1.7627272748339067
1989	1.1230307739074021
1990	1.3433851133736805
1991	1.4861578498843544
1992	3.7745653913261776
1993	3.8403153889907378
1994	2.7715302913288333
1995	3.072928939899777
1996	4.128333245222219
1997	3.8382615868598653
1998	5.517847903566608
1999	8.675836113851338
2000	9.976470591224144
2001	8.093574808937353
2002	7.81494386283708
2003	7.502495691976198
2004	8.337074557119374
2005	9.635666905984996
2006	9.144928235045501
2007	10.215128375263026
2008	15.562637026740925
2009	13.841666471809544
2010	17.066685152808247
2011	17.144242596762403
2012	17.245007584104926
2013	17.726133697163036
2014	20.867531857095674
2015	20.6912202426147
2016	18.06789607199539
2017	17.92798386534562
2018	18.448876201599383
2019	17.925759004908965
2020	14.219702235609915