Year	% of total merchandise exports
1960	0.4192968714002672
1961	0.2861295303842311
1968	2.5057152494097368
1969	1.782484148186295
1970	1.8467135103196992
1971	2.0665584415584415
1972	1.846858094049105
1973	1.9404267506802235
1974	1.3039783896209305
1975	1.6435410033388573
1976	1.3740836059850778
1977	1.0396048952069339
1978	1.368655367729707
1979	1.3634724544269357
1980	1.2081539407784905
1981	0.8905872814471099
1982	0.7663589248906827
1983	0.984705972932939
1984	1.1511149200092472
1985	1.7859734884134721
1986	2.457806275770494
1987	1.7011924882137794
1988	2.6596124469902747
1989	2.1618513655229727
1990	1.961551082807969
1991	0.790244293794376
1992	0.5984340044742729
1993	1.0677274154715797
1994	0.5969247043711512
1995	0.6305689893790722
1996	0.40586826938606774
1997	0.35338330905751536
1998	0.25905583738472576
1999	0.5891345138559734
2000	0.5000809625123067
2001	0.8915234111750763
2002	0.9425355699821392
2003	0.68253922741901
2004	0.9288987407006445
2005	0.8782619935836841
2006	1.2569323363075737
2007	1.260199187472591
2008	1.178372602739726
2009	1.7402704729659566
2010	2.0173351254285192
2011	2.0440853345562697
2012	2.128276398139032
2013	2.0713578039682616
2014	1.9645054690748676
2015	1.7093802532080309
2016	1.8977537269792677
2017	1.9523120327574996
2018	1.828748301578137
2019	1.7226356777627887
2020	1.8417784300687385