Year	% of total merchandise exports
1960	10.980966325036604
1961	8.707360861759424
1962	9.161929613689807
1963	6.935617776439249
1964	5.3484613246437585
1965	5.097934127584561
1966	4.444710466308438
1967	4.453078504437336
1968	3.844010929329754
1969	3.564195327704663
1970	3.627182975709341
1971	4.802812480659222
1972	4.654144985867044
1973	4.356220001937578
1974	4.545730786499448
1975	6.1691432379283
1976	5.019944778380891
1977	5.542152770507399
1978	6.3854934875995335
1979	4.761191484816701
1980	6.12520399709848
1981	9.026750712139417
1982	8.791772671951733
1983	6.039319965694426
1984	6.494915000532278
1985	5.031949012796071
1986	5.040486166984957
1987	4.638505330890527
1988	5.264445938676087
1989	7.9027396249666815
1990	9.30680805292227
1991	9.129253546948524
1992	10.67595121560642
1993	11.581999274573349
1994	12.99959280590573
1995	11.56426233959556
1996	6.970647374659213
1997	7.985498711445999
1998	12.594111193444208
1999	10.986188742124488
2000	12.613480847654863
2001	12.50395022684867
2002	15.548697132452002
2003	14.075539742889035
2004	16.042797566295715
2005	9.283743874513616
2006	13.906896310776276
2007	22.875327244852382
2008	30.14112198611422
2009	29.819649036605
2010	23.03074286803375
2011	12.722412929566653
2012	13.839475487618296
2013	11.848684101886919
2014	11.929800826198397
2015	11.762522446475174
2016	13.749899584677665
2017	14.631182013214072
2018	12.462679553571105
2019	19.43745625158729
2020	21.47858321581058