Year	% of total merchandise exports
1960	4.669659028269942
1961	5.076648841354723
1962	4.507622579316028
1963	4.001705878171867
1964	7.317073170731707
1965	10.568545101234877
1966	8.225157955198162
1967	7.240420645473226
1968	7.913477891156464
1969	8.830429099471091
1970	8.918079003202635
1971	9.788450937155456
1972	7.774119903885062
1973	7.012163644576369
1974	8.795376694019215
1975	10.816114509984994
1976	8.805254432337893
1977	8.503847484717166
1978	9.231005185345056
1979	11.723702134696095
1980	12.825284905309786
1981	12.519157470009315
1982	10.066484739057193
1983	7.161391475305405
1984	8.15918677336588
1985	6.530823662300563
1986	8.353246781074688
1987	8.239569925617458
1988	7.697675210688196
1989	7.74074420376794
1990	7.885702467153659
1991	11.855369185055599
1992	16.31953056103678
1993	18.717653824778473
1994	18.610564969288955
1995	16.935948527553357
1996	18.84727009399295
1997	21.66498407775147
1998	21.94878494671706
1999	18.473879722138253
2000	18.086990904694076
2001	16.670770314101517
2002	13.56469151036504
2003	14.888408310675185
2004	16.756163623649094
2005	17.323326056605527
2006	17.910955428984458
2007	18.531630488961902
2008	18.78958159460852
2009	17.21091814559509
2010	17.761685469133052
2011	16.471726793679064
2012	14.690346746070423
2013	14.824670046754107
2014	13.639208392270103
2015	14.451894081115865
2016	15.155145566705317
2017	15.79035547085943
2018	13.37848895829809
2019	11.936232348784879
2020	10.350316056915378