Year	% of total merchandise exports
1960	3.899499939016953
1961	3.767377931997927
1962	3.7421971519270043
1963	4.614166970446343
1964	10.674891889254614
1965	12.533988851821439
1966	8.188817836414447
1967	6.577565407349351
1968	8.084936730211899
1969	9.52582528349575
1970	9.908711136140868
1971	9.568033149255664
1972	11.321924670954314
1973	11.017931284098964
1974	10.43929587471553
1975	5.574612495880911
1976	4.481469022436037
1977	4.1117711155798515
1978	3.550899401366784
1979	3.883408385000167
1980	4.288508254991622
1981	7.615981353617353
1982	7.122156536330025
1983	6.693502533958318
1984	6.037766761826913
1985	5.314758749451283
1986	5.358036891468988
1987	5.68086212706715
1988	4.980537119208972
1989	6.352341856431468
1990	7.252986957168487
1991	6.591001425625223
1992	8.813756355450598
1993	10.254114497655705
1994	12.075366012498955
1995	12.358931414901624
1996	12.872166428139892
1997	13.405022649188277
1998	12.849559402146904
1999	13.77110496251785
2000	17.450137909977602
2001	14.956188351360069
2002	16.818209588814224
2003	16.127078200921733
2004	16.091126116754864
2005	15.176716103610522
2006	14.898737862865858
2007	14.371914428469745
2008	14.31477059999556
2009	17.545592037059873
2010	19.867425953472832
2011	19.938617416227945
2012	22.05217808626537
2013	22.946091318611074
2014	23.04060819728576
2015	25.439726167761506
2016	25.619676435493126
2017	23.158473896250435
2018	22.48455079608528
2019	23.72682754522371
2020	22.793470088514884