Year	% of total merchandise exports
1960	5.179058182159977
1961	3.8347001420259312
1962	3.316349334048449
1963	3.1329897325595555
1964	5.139495160371988
1965	5.288751507840772
1966	5.762401191430863
1967	4.903889808025231
1968	4.161295994024379
1969	4.762975759448958
1970	5.052378160755162
1971	4.023564285848296
1972	3.2669117627845843
1973	4.408392445879383
1974	4.5845990138518555
1975	3.830181613442065
1976	4.16380131933728
1977	3.5210309466885885
1978	4.893685007814947
1979	4.184818601520802
1980	5.040539385452756
1981	5.494690272719425
1982	4.080137252297868
1983	3.3954025201448754
1984	2.408140198685212
1985	2.5385239022812374
1986	2.193463838187909
1987	2.335157471271554
1988	3.093283932860714
1989	3.965253149948074
1990	2.994237477563127
1991	3.7815183611089216
1992	4.081152282906624
1993	4.495938958972371
1994	4.422518784545684
1995	5.291060379981431
1996	6.06454943432841
1997	5.820352186741174
1998	4.515070705072125
1999	4.820836012430453
2000	5.64976453112455
2001	6.505155907875665
2002	7.888027140775796
2003	8.39923708027446
2004	8.96188074164413
2005	9.557158576836569
2006	9.85346056969695
2007	10.726869730937993
2008	10.348629497661674
2009	11.198837939144001
2010	12.982572309310598
2011	11.386685102729801
2012	10.863914704654963
2013	10.857131935546382
2014	10.338623793449267
2015	9.906726073804798
2016	9.883761434881752
2017	11.211677321682135
2018	11.852101714904181
2019	11.455704124858826
2020	13.027840037253316