Year	% of total merchandise exports
1960	2.1794221996958947
1961	1.775819783813244
1968	2.9456957613461756
1969	2.529852908043387
1970	1.8600367257329216
1971	2.448051948051948
1972	2.2571785268414484
1973	1.744713351472624
1974	2.245501008230714
1975	1.980303174459178
1976	2.118767911798852
1977	1.5825821547081775
1978	1.9514437472253794
1979	2.641712119951281
1980	2.6799051049995604
1981	2.0427280347760766
1982	2.0062746561224536
1983	2.333462421096541
1984	2.05668823571994
1985	2.129542485496355
1986	2.2386478789572997
1987	2.3755579159973417
1988	2.418661434664162
1989	1.7864718407914026
1990	1.560164444576435
1991	1.659713586585904
1992	1.7421700223713648
1993	1.4457354873977926
1994	10.398012769655068
1995	10.242275335500024
1996	10.301286629040739
1997	8.63610042754061
1998	5.909004664761178
1999	3.75660680669809
2000	4.290338648429856
2001	4.221004436214093
2002	4.359689076007111
2003	4.696978027707711
2004	5.233645594649565
2005	7.045322154534399
2006	9.008493343684444
2007	10.159188139701
2008	11.102421973889859
2009	9.962310598245331
2010	10.697836809327937
2011	10.498233306915528
2012	10.810288797513563
2013	11.203142260215994
2014	9.98773081032706
2015	8.68596060652899
2016	8.517128687487121
2017	9.479863756743931
2018	9.326589815082114
2019	9.319429612995469
2020	9.475401218508699