Year	% of total merchandise exports
1960	0.6929406669553919
1961	0.8643753858818687
1962	2.9068533842563125
1963	3.0514221133923525
1964	3.094327067043753
1965	1.7202293639151889
1966	2.135822995267937
1967	1.5050907481186366
1968	1.3511231210944097
1969	1.2574379701358482
1970	0.8633906237392077
1971	1.894818252126837
1972	1.4958931767081174
1973	1.6005547048796693
1974	1.7767268309614719
1975	1.9274787677144178
1976	1.946984819646256
1977	2.229646859801227
1978	2.5754090621453036
1979	1.7994739195317535
1981	2.4708251171938
1982	2.3997230817050257
1983	2.6826596252703725
1984	4.553074498759472
1985	3.366533695910248
1986	4.147660981778736
1987	4.147660981984576
1988	6.508005464983199
1989	6.489602615656404
1990	6.503673877689517
1991	8.594054788095248
1992	7.064414469705532
1993	7.287484942947038
1994	6.7300399621790685
1995	8.288478252019402
1996	7.657014137383757
1997	8.098219296530353
1998	10.387855205303758
1999	10.616278088151095
2000	6.9997584508700905
2001	6.3302816655135805
2002	9.267626583715776
2003	8.305278326662641
2004	7.7547637175990864
2005	7.572982424855482
2006	7.972648105521873
2007	9.204319662046904
2008	7.976308781616311
2009	9.634325148640047
2010	8.849194348664344
2011	8.178595607168788
2012	10.269125913068764
2013	9.815713915929686
2014	11.142762072894858
2015	12.318571149046415
2016	12.068446488890478
2017	11.078740863768138
2018	13.204723691873754
2019	12.279396218173407
2020	12.23540092838929