Year	% of total merchandise exports
1960	3.2362796621770418
1961	3.2906764168190126
1962	3.964084078451043
1963	4.436651065614475
1964	8.504087493190516
1965	9.922619230927157
1966	6.908836640304646
1967	5.827359763024987
1968	6.982428781257366
1969	7.756153229362224
1970	7.760449930906284
1971	7.695196032648336
1972	8.718987035697857
1973	8.390968631231969
1974	6.731827351094339
1975	5.06492445826585
1976	3.948667067794491
1977	4.026187918257613
1978	3.972565171777624
1979	3.537927997803933
1980	5.334551423293751
1981	5.9947373085152025
1982	6.120913318668447
1983	6.185387826133262
1984	5.928331058022997
1985	5.372076492833843
1986	6.025332741434271
1987	6.609990602674134
1988	6.2387601624184335
1989	7.2575144040599335
1990	7.801080201059281
1991	8.035665666994667
1992	9.218966561122196
1993	9.881855689908093
1994	10.618908866203775
1995	11.069674627405158
1996	11.025824717633654
1997	11.498890477535575
1998	12.056290754001495
1999	12.31325725543865
2000	14.366358485548147
2001	13.295770258137363
2002	15.027478580856238
2003	14.127763867042622
2004	14.11673228251723
2005	13.571463428847524
2006	13.527803550546007
2007	13.645623570066345
2008	12.810789837669494
2009	16.665022086991932
2010	17.321167643595324
2011	17.490378917665154
2012	18.63928437167627
2013	19.62917626137971
2014	19.954606948644134
2015	21.813940582921333
2016	22.69200039298305
2017	20.254676831401266
2018	18.930438491332144
2019	19.68505386646313
2020	20.25596616354563