Year	% of total merchandise exports
1960	0.6114003010273054
1961	1.0687018863800226
1962	1.459779999923699
1963	2.2388362305026797
1964	4.128041501481143
1965	5.006614022275594
1966	3.2486398653082635
1967	2.0349004257041385
1968	1.6331111286067062
1969	3.1998844376416757
1970	3.321337567345195
1971	2.791586007463109
1972	3.99583211161966
1973	3.8547431981099876
1974	2.7823968330986166
1975	1.572617606383459
1976	1.116784035787855
1977	1.2693018739085358
1978	1.4383358564492126
1979	1.228817460248774
1980	0.9455613470817816
1981	1.944232997863643
1982	1.6332218222430341
1983	1.5386440122805354
1984	1.8829827488262358
1985	1.6393574404959848
1986	2.0804263679765054
1987	2.318941110970504
1988	2.7974503244967477
1989	2.3198033222988457
1990	2.5166193286667764
1991	3.1739122382174885
1992	3.3585348021782453
1993	3.8308724487061374
1994	3.7822221678856507
1995	3.9479334952226544
1996	3.6784941913569646
1997	3.8212432182566216
1998	4.916787191289333
1999	3.4807101199012846
2000	4.855275846216873
2001	4.617350512897221
2002	5.706448380996052
2003	5.402747412432099
2004	5.148121095502562
2005	5.102300335398584
2006	4.580086390436102
2007	4.894062130073853
2008	3.492988270405383
2009	4.752857350652511
2010	4.353999788735544
2011	5.5964383326562865
2012	5.0760974307690905
2013	5.704583111512732
2014	6.902297427308725
2015	8.06585399069295
2016	8.792505913612871
2017	7.283097958597875
2018	6.617618804732736
2019	6.703021678932633
2020	7.308734572492518